In just two months, we've seen what happens when someone who was competent enough to be a vice-president becomes president.
Joe Biden: The Most Influential Vice President in History?
December 31, 2012
https://www.theatlantic.com/politics/archive/2012/12/joe-biden-the-most-influential-vice-president-in-history/266729/
Barack Obama just can't get enough out of Joe Biden these days. And anybody who's been following Biden's steady ascent in stature over the last several years -- from gaffe-happy presidential contender to one of the most powerful vice presidents in U.S. history -- couldn't be less surprised.