Franken tweeted.“My promise is that you’ll laugh, you’ll think, and you’ll leave hopeful about our future,” he wrote. “Unless I’m in a bad mood that night.”Franken spent years on SNL as a writer and was known for portraying the character Stuart Smalley before he won election to a Minnesota Senate seat as a Democrat.Franken resigned from the Senate in 2017 facing growing calls from his colleagues to step down over allegations from several women of inappropriate conduct.