The fourth Republican debate in Alabama featured just four people – winnowing the broad pool down to Ron DeSantis, Nikki Haley, Chris Christie and Vivek Ramaswamy – but once again missing frontrunner Donald Trump. The debate, hosted by NewsNation and moderated by Megyn Kelly, Elizabeth Vargas and Eliana Johnson, devolved into conspiracy theories and confusing personal attacks despite some clear and forthright questions. With primary elections just weeks away now, the four candidates tried to make their mark on stage yet again, but largely fell short. Here are the key takeaways. Chris Christie again positioned himself as the anti-Trump candidate,...