text:  I'm Jennifer Kuiper. After last night's debate performance, President Biden now faces calls to step aside CBS's Major Garrett. We had to exert a ton of energy to reassure Democrats, extract statements of supporting his renomination from Congressman Clyburn, former President Obama. There are also deep concerns I'm hearing about institutional party donors potentially holding back, not giving the reelection campaign as much as they originally wanted to. Not because they don't believe in the cause, but they now have fresh doubts about the ability of President Biden to carry that cause to victory.