MSNBC data guru Steve Kornacki said Tuesday that four potential replacement candidates polled better against former President Donald Trump than President Joe Biden. Biden has come under fire from fellow Democrats since Thursday night’s CNN debate, where he froze several times made multiple verbal gaffes. Kornacki reviewed a CNN poll that showed Biden trailing… MSNBC Data Guru Says Biden Polls Worst Against Trump Then To Kamala Harris, 3 Other Dems