 Senator Richard Blumenthal, the latest Democrat to express doubts about President Biden's prospects for winning reelection in November. Bob Agnew has more. Senator Blumenthal told reporters he's deeply concerned about Biden's ability to win, but he was also quick to add that if he is a nominee, Biden will have his full support. He also called the reelection of Donald Trump an existential threat to the country. Behind closed doors, several Democrats expressed deep concerns on Tuesday about whether Biden can