Who will blink first over the debt ceiling, the Democrats or the Republicans?

While the politicians have a pissing contest with a nice game of ”chicken”, who will blink first and capitulate? I know Obama do not want to axe benefits to the poor and the elderly but won’t they lose anyhow if nothing is done? Moreover, won’t John Boehner be throwing many less than affluent Republicans “under the bus” if he get his way? Does the Republicans even care about their own that are not rich outside of an election year? Something will get done because it is like being on a train headed to a gorge and the bridge is out, someone will swallow their pride and leap for the emergency brakes. Who will that be, Obama or John?