The GOP has been playing voter poker with the debt limit. Obama has been playing a different game: Obama Campaign/DNC Raise $86 Million in Second Quarter.
The American voter has a 3 month memory. Tea Party voters in particular remember what they're told to remember.
Donors though, they think ahead. Corporations can see Obama has given them almost everything they could hope for, while the GOP promises global economic ruin.
GOP leaders know this. That's why McConnell caved. There are still moves to be made, but the game is over.