Comedian Bill Maher called on Democrats to replace President Joe Biden with California Gov. Gavin Newsom in an op-ed published on Monday. Many democrats called on Biden to step down following the Thursday debate, where the president spoke in a raspy voice and made several verbal gaffes. Maher argued in an op-ed titled “Why I Want an Open Convention” that replacing Biden is crucial and noted Newsom would be a strong challenge to former President Donald Trump. Read: MSNBC Host Mika Brzezinski Throws Biden‘s Staff Under The Bus For Poor Debate Performance “What happened at the debate last week wa…