During the second night of the Democratic Primary Debates, there was one presidential hopeful onstage who seemed a little… out there. That was self-help author-turned-candidate Marianne Williamson, who appeared to not just ignore the premise of questions, but then go off on random tangents about New Zealand or the power of love. Pretty immediately, Twitter began lighting up with folks eager to see SNL star Kate McKinnon’s impersonation of Williamson, although that seemed like a long shot given that Williamson is unlikely to hold on until the fall when SNL returns. Luckily, McKinnon just happened to …