Perjury in State of the Union message? The Constitution requires the President https://en.wikipedia.org/wiki/State_of_the_Union to report to Congress on the "State of the Union". The Constitution is vague on the manner of reporting and the frequency: He shall from time to time give to Congress information of the State of the Union and recommend to their Consideration such measures as he shall judge necessary and expedient. — Article II, Section 3 of the U.S. Constitution In recent times the reporting has been by a speech to the combined House and Senate, with widespread media coverage. In making this Constitutionally mandated report to Congress, is the President subject to perjury charges if he should lie to Congress?
No. The federal perjury statute applies only when there has been an oath taken to assert that the false statement was true, or the false statement was otherwise submitted under penalty of perjury. There is another statute concerning false statements generally, but it is also limited in such a way that it would not apply to the state of the union speech.
Even within the United States, this would depend upon the jurisdiction involved. Some jurisdictions recognize a legal privilege of a journalist to keep confidential sources secret (also called a "reporter's privilege"), while others do not. There is a split of authority on the question within the various circuits of the U.S. federal court system, and there is also a split of authority between different U.S. states. The First, Second, Third, Fifth, Eighth, Ninth, Tenth, Eleventh, and D.C. Circuits have all held that a qualified reporter's privilege exists. In the recent case of U.S. v. Sterling, the Fourth expressly denied a reporter's privilege exists. Furthermore, forty states and the District of Columbia have enacted statutes called shield laws protecting journalists' anonymous sources. Three U.S. Court of Appeals circuits, the 6th, the 7th and the Federal Circuit, do not have any controlling case law on the subject. Ten U.S. states do not have shield laws protecting journalists' anonymous sources. The U.S. Department of Justice, as a matter of policy, seeks to compel journalists to disclose their anonymous sources only under specified conditions where the need is great, but this policy is not a defense available to a journalist in a case brought by the U.S. government. In the absence of a legal privilege, the journalist could be incarcerated until the information is disclosed or the need for the information is moot, for contempt of court. Quite a few journalists in the United States, faced with that choice, have opted to be incarcerated rather than to reveal a source. If the subpoena is upheld, even if the face of a good faith effort of the journalist to quash the subpoena on the basis of a legal privilege or other grounds, if the journalist does comply with the subpoena, the breach of the non-disclosure contract is legally excused and cannot be a ground for the journalist to be legally liable to the informant.
We can only guess at what argument he has in mind, but one possible argument is that the standard is unconstitutionally vague, similar to the argument by McDonnell in the recent McDonnell v US (admittedly about a different statute). The vagueness argument was developed in several of the briefs: http://www.scotusblog.com/case-files/cases/mcdonnell-v-united-states/ The unconstitutional vagueness argument has also been made specifically about 18 USC 793 (e). US v Hitselberger 1:12-cr-00231-RC D.D.C. (2014). The defendant made a motion to dismiss based on constitutional vagueness, but this motion was denied. Private Manning raised the same defence, also unsuccessfully: http://fas.org/sgp/jud/manning/051012-vague.pdf
We may soon have a more definitive answer. A Grand Junction, Colorado newspaper is suing a politician for calling it "fake news", and the resolution of that case and the hypothetical that you propose would turn on the same legal principle. It is highly unlikely that such a lawsuit would prevail, because "fake news" probably doesn't constitute libel per se, because the comment could be construed as hyperbole or as a statement of opinion (neither of which are actionable), and even potentially, because a "speech and debate clause" defense under the state constitution might apply (depending upon the context in which the statement was made by the politician). The context of the particular tweet cited generally defines specified organizations as "the FAKE NEWS media" rather than accusing them of any particular instance of making a false statement, so it is probably an opinion or hyperbole. But, if the statement were made knowing it was false or with reckless disregard as to truth or falsity, and if the term "fake news" in the context in which it was used could be legitimately construed the imply a statement of fact which is not true, it wouldn't be impossible for the lawsuit to succeed, and depending upon the context of the statement, it could have such an implication. A suit against Trump could also implicate Presidential immunity doctrines which are more robust than immunity doctrines for other public officials, particularly if the "fake news" comment could be construed as part of the official duties of the President (for which there is absolute immunity) as opposed to his unofficial duties. The immunity question is a closer one than the question on the merits of defamation law about which there is much more case law to flesh out what is and isn't covered.
No. There are few if any checks on any President for any Pardons issued (a general Impeachment may be the only check but there has never been a strong call for impeachment for a pardon.). Further more, the protection against Double Jeopardy is in effect meaning future Presidents cannot prosecute the pardon recipient for any crimes that were pardoned by a previous president, though they may prosecute any future criminal incidents perpetrated by the pardoned person that are not related to the events surrounding the pardoned crime.
With regard to subpoenas, the Supreme Court's recent ruling in Trump v. Vance makes it clear that states can issue subpoenas to sitting presidents. (The case in question involved a subpoena to a third party for the president's records, not to the president himself, but the opinion makes it clear that the court would apply the same reasoning in either situation.) The questions of what actions a state may take to enforce such a subpoena if it is not complied with, or of arrest / indictment / trial by a state, have never arisen and thus have not been resolved by courts.
Probably.* Congress has wide latitude to dictate the procedures of "inferior courts" -- the district courts and circuit courts of appeal. Those courts only exist because Congress created them, so Congress can generally set the terms on which they continue to exist. That power is limited in several important ways by the Constitution, including the terms and compensation of the judges, and standing to address cases, and then further limited by separation-of-powers principles. But the Rules of Civil Procedure and the Rules of Criminal Procedure are a good example of how Congress has already -- and largely unobjectionably -- imposed these types of demands on the judiciary. The rules are generally drafted by the judicial branch, but Congress approves them and gives them the force of law. In both sets of rules, you can already see some requirements on how decisions are worded: Criminal Rule 23 requires the court to "state its specific findings of fact" after a bench trial; Criminal Rule 32 requires the court to "set forth the plea, the jury verdict or the court's findings, the adjudication, and the sentence" in judgments of conviction; Civil Rule 52 requires the court to "find the facts specially and state its conclusions of law separately"; Civil Rule 58 requires that "every judgment and amended judgment ... be set out in a separate document"; Civil Rule 59 requires the court to "specify the reasons [for granting or denying a motion for a new trial] in its order"; and Civil Rule 72 requires magistrates to enter "a recommended disposition, including, if appropriate, proposed findings of fact." The rule you're proposing seems to go well beyond these requirements, but I don't see how it would run afoul of constitutional constraints. I could imagine an argument that this somehow encroaches on the courts' inherent authority, but I'm not really convinced that that authority protects against this. For more information, you can read the Congressional Research Service report on "Congressional Authority Over the Federal Courts." *This answer only applies to Article III courts, but even then does not apply to the Supreme Court, which is co-equal and generally has the authority to set its own rules. When it comes to Article I courts, though, Congress would probably have virtually unlimited discretion to impose the kinds of requirements that you're talking about, and even to say that the court has no jurisdiction to consider constitutionality at all. Congress might even get away with imposing these kinds of requirements on state courts through the Spending Clause
There is currently no law requiring a candidate for US President to release tax records to appear on the ballot. Nor is there any law requiring the President to release such records after taking office. There are laws requiring members of congress, and other Federal officials, to make public some limited information about their finances. This is much less than the information that would be included in an income tax return. Congress could pass a law requiring candidates to release their returns, but it seems unlikely that the current Congress will do so. States have broad authority over Federal elections. A state could pass a law requiring a candidate to release his or her returns as a condition of appearing on the ballot. Such a law might be challenged on Due process grounds. This would be an untested legal area, so there is no telling how a court would rule on such a challenge to such a law. Congress, or an individual house of Congress, may subpoena almost any information in pursuit of its investigation function. Investigations must be related to possible legislation, meaning it must be related to a subject about which Congress has power to pass a law. But the relation can be rather remote, as long as the information might inform the judgement of members of congress in considering a possible law. There does not have to be an actual law under consideration. Investigations have been challenged, and in a few cases there have been court rulings that an investigation was not related to possible legislation, and so Congress was not allowed to enforce subpoenas on that subject, nor to compel testimony. But such rulings have been rare. Previous Presidents have asserted, under the name of "Executive privilege", a right not to disclose information, such as internal discussions within the executive branch. This is not explicitly specified by the US Constitution, nor by any law, but has been generally accepted, and in some cases supported by court rulings. No court has ever clearly defined the extent or limits of Executive privilege. A House committee issued a subpoena this year for President Trump's tax records, or some of them. I forget whether this was addressed to the IRS or to the Treasury Dept. This has been challenged in court, and the matter is still in court. I be3live that one of the grounds asserted against the subpoena was that it was not to look into tax issues, as specified in the law authorizing the subpoena. No one yet knows how that case will proceed. The NY State Attorney General is investigating allegations that the Trump Organization, and various individuals, violated NY law, including by falsely reporting campaign expenses and contributions. In pursuit of that investigation, he issued a subpoena for various records which he claims will reveal possible evidence of those illegal actions. He pretty learly has the authority to subpoena records which might be evidence in a criminal case. This subpoena has also been challenged, but seems pretty likely to be upheld. However the subpoena was as part of a Grand Jury investigation, and Grand Jury proceedings, including evidence obtained by subpoena, are by law secret unless an indictment and trial results. So even if the subpoena is upheld, this should not lead to the public release of the records, unless someone is put on trial for some crime, and the records are evidence in that case. Even then the judge can order the records not to be released to the public.