ANDREW MALCOLM: Actually tonight’s big Ryan-Biden debate is no BFD. “Part of the reason, of course, has to do with the irrelevance of the No. 2 office most of the time.” Yeah, if voters cared that much who was a heartbeat away, Biden wouldn’t be where he is now.

Though — hilariously, in retrospect — he was added to the ticket in 2008 to bring foreign-policy “heft.” How’s that worked out?