Never Again...
If you think that old dogs can't learn new tricks you need to take a look at Joe Biden. Back in 2011, during the first serious Republican debt ceiling hostage crisis and the protracted negotiations that followed, Biden undercut Senate Majority leader Harry Reid and wrecked a deal he had made for a terrible one. There was a lot of hand-wringing at the time over Biden's tendency to give away the store so when the Republicans pulled their hostage maneuver again in 2013, Reid stipulated that Biden needed to stay out of the negotiations — and the White House agreed.
