Top Biden aides to meet with Senate Democrats today amid concerns after debate

Washington — Senate Democrats will be meeting with top advisers to President Biden Thursday amid calls for the White House to do more to reassure the party about the president's path to reelection and fitness for office after his performance in last month's debate. 

At a special caucus lunch meeting, the senators will hear from senior advisers to the president Mike Donilon, the president's longtime speechwriter, and Steve Ricchetti, counselor to the president, along with Biden campaign chair Jen O'Malley Dillon, a Senate Democratic leadership aide told CBS News. 

The president has been fighting to prove he's up for another four years on the job as lawmakers returned to Capitol Hill with varying levels of support and doubt related to Mr. Biden's ability to win reelection and serve a second term. The president worked to assuage concerns early in the week, telling lawmakers in a letter that he's "firmly committed" to running and making his case for reelection. But that hasn't stopped what's been a slow drip of Democrats calling for Mr. Biden to leave the race in recent days.