According to CNN, former U.S. House Speaker Nancy Pelosi privately told Biden in a recent conversation that polls show he can't beat Trump and that he could derail the Democrats' chances of winning the House in November if he continues to seek re-election, four people familiar with the matter said. Biden hit back by saying the polls he saw showed he could win. Another source said Biden began to defend the poll results. At one point Pelosi asked Mike Donilon, a longtime Biden adviser, to take a call to discuss the data. The exact date of the conversation was not known, with one source saying it was last week. Neither of the sources said whether Pelosi told Biden in this conversation that she thought Biden should drop out of the race. "It's up to the president to run," Ms. Pelosi said in an interview last week. "We all encourage him to make a decision because time is running out." A spokeswoman for Ms. Pelosi told CNN that she had been in California since Friday and had not spoken to Mr. Biden since.