(CNN) -

Sen. Al Franken, whose previous career was as a comedian and writer, has established himself as a serious lawmaker on Capitol Hill.

But facing a potentially tough re-election fight in 2014, the Minnesota Democrat is enlisting a colleague from his former life to pitch in on raising campaign cash.

Conan O'Brien, who worked with Franken as a writer on "Saturday Night Live" in the early 1980s and 90s, is raffling tickets to brunch at his home in April, with the contributions going to Franken's re-election effort.

"I'm having my friend Al -- and some of his best supporters -- over for brunch on Sunday, April 7. And I've got room for you and a friend," O'Brien, who hosts a show on CNN's sister network TBS, wrote in an email to a list of Franken's supporters. "Al's a funny guy, a good friend, and a great Senator who always stands up for Minnesota.

"If you've always wanted to eat eggs with me, well, that's kind of a weird lifelong dream. But this could be your chance to make it come true," O'Brien continued. "I hope to see you and a friend at my place on April 7. Please don't steal any silverware."