Joe Biden's campaign is quietly testing the strength of Vice President Kamala Harris against former President Donald Trump in a head-to-head survey of voters, as Biden fights for his political future with a high-stakes news conference Thursday.
The survey, which is being conducted this week and was commissioned by the Biden campaign's analytics team, is believed to be the first time since the debate that Biden's aides have sought to measure how the vice president would fare at the top of the ticket. It was described by three people who are informed about it and insisted on anonymity because of the sensitive nature of the information. They did not specify why the survey was being conducted or what the campaign planned to do with the results. It could be read as the team gathering information to present a case to the president that his path forward is slim, or to argue that Biden is still the strongest standard-bearer for his party.
The effort comes as some longtime aides and advisers to Biden are said to have become increasingly convinced that he will have to step aside from the campaign, and in recent days have been trying to come up with ways to convince him that he should, The New York Times reported Thursday. A growing number of prominent lawmakers have called for Biden to drop out or suggest he should reconsider his plans to run.
While some of Biden's top aides have quietly argued that Harris could not win the election, donors and other outside supporters of the vice president's believe she might be in a