Barack Obama sent Joe Biden out to do some fundraising, with predictable results. Oh, Biden showed up and made his sales pitch on Obama’s behalf, but as it turns out, the President wasn’t Biden’s only client. To the surprise of some attendees, Biden asked the donors to keep some money aside for 2016, too: Vice President Joe Biden surprised a gathering of donors in Cincinnati last week when he floated the prospect of his succeeding President Barack Obama in the White House.Biden, who started in the Senate young and would be just 70 in 2012, raised the possibility unprompted during...