tonight, join jimmy and his guests -- joel mchale, zoe kravitz, and featuring the legendary roots crew>> questlove: three! >> steve: and now, here he is, jimmy fallon! ♪ ♪ [ cheers and applause ] >> jimmy: hi, everybody. hey. welcome! welcome, welcome, welcome, welcome, everybody. welcome to "the tonight show." this is it, baby. [ cheers and applause ] here's what people are talking about. guys, monday is presidents' day, which means most people weekend. [ cheers ] steve: yeah! >> jimmy: get this. a new survey of historians just ranked james buchanan as the worst president ever. [ light laughter ] then after yesterday, buchanan said, "i think you guys need to click your refresh button." [ laughter and applause ] >> steve: hey-oh! >> jimmy: a new challenger has emerged. yeah. people are still talking about president trump's wild press conference yesterday. in fact, the "new york times" called it "77 chaotic minutes." [ light laughter ] it's not good when your first press conference gets the same review as "john wick 2." [ laughter and applause ] 77 chaotic minutes. but this morning, tru