He's currently promoting his upcoming book, which I wrote about here, the sarcastically-titled Giant of the Senate, which largely looks at his first Senate campaign that he won by a whopping 312 votes. And this past weekend on the CBS Sunday Morning show, they did a feature about him, which in part dealt with a subject he put on the back-burner for a long while, balancing his serious job with his comedy past.
And just because you deserve it, here's a bonus. This is a bonus video that CBS Sunday Morning posted as a web exclusive, more material with their interview with Franken that didn't make it into the final cut.
And despite the description below, it's a bit of an over-exaggeration. This isn't Franken "telling a joke," nor is it what I'd call remotely "killer," but rather a story he's explaining about a situation in the Senate that leads to a quip he was thinking of making during a committee hearing, and his thought-process of whether or not he should use it or be serious.