Which president appointed the justice who wrote for a unanimous court in Smiley v. Citibank?
Ronald Reagan
Title: Antonin Scalia
Passage: Antonin Gregory Scalia ( ; March 11, 1936 – February 13, 2016) was an Associate Justice of the Supreme Court of the United States from 1986 until his death in 2016.  Appointed to the Court by President Ronald Reagan in 1986, Scalia was described as the intellectual anchor for the originalist and textualist position in the Court's conservative wing.
Title: Smiley v. Citibank (South Dakota), N. A.
Passage: Smiley v. Citibank, (517 U.S. 735), is a 1996 U.S. Supreme Court decision upholding a regulation of the Comptroller of Currency which included credit card late fees and other penalties within the definition of interest and thus prevented individual states from limiting them when charged by nationally-chartered banks.  Justice Antonin Scalia wrote for a unanimous court that the regulation was reasonable enough under the Court's own "Chevron" standard for the justices to defer to the Comptroller.
Title: Owasso Independent School District v. Falvo
Passage: Owasso Independent School District v. Falvo, 534 U.S. 426 (2002) , was a case in which the United States Supreme Court held in favor of the school district that students scoring each other's tests and calling out the grades do not violate the Family Educational Rights and Privacy Act of 1974 (FERPA).  Justice Kennedy wrote the opinion for the unanimous court.  Justice Scalia wrote a concurring opinion in which he agreed with the ruling, but took issue with parts of Kennedy's opinion.
Smiley v. Citibank (South Dakota), N. A. Antonin Scalia