Democrats worried about President Joe Biden’s ability to win this November are making a renewed push for him to reconsider his re-election bid, using mountains of data, frank conversations and now, his own time off the campaign trail after testing positive for COVID, to encourage a reassessment.

Biden has insisted he is not backing down, adamant that he is the candidate who beat Republican Donald Trump before and will do it again this year. But publicly and privately, key Democrats are sending signals of concern, and some hope he will assess the trajectory of the race and his legacy during this few days’ pause.