 Democracy 2024. Senate Democrats meeting with top Biden administrators and campaign officials. President Biden's campaign chair, Jen O'Malley Dillon, and two senior advisors will attend a special caucus lunch, according to a Senate Democratic leadership source. A number of Senate Democrats, like Whip Dick Durbin of Illinois, have said they have concerns following the president's disappointing debate performance. I think he's aware of the fact that what happened in that debate was disastrous.