text:  Several senior House Democrats told their leadership on a call Sunday that President Biden should step aside as the party's nominee for president. NPR's Deirdre Walsh has more. Four ranking members of key committees say the party needs a change at the top of the ticket, according to two sources familiar with the private call on Sunday. New York Democrats Jerry Nadler and Joe Morelli, California Congressman Mark Takano, and Washington State Congressman Adam Smith were the latest to push for the president to withdraw.