There might be hope if the Pubbies amass dozens of vetoes from Soebarkah, blocking their legislation, and providing- that it is good for America, and, giving the White House to a Cruz like candidate, all the while holding onto both houses. Truly a long shot, what with an army of Rinos poised at the 2016 gate.
The gauntlet that Cruz will have to battle through is much more daunting than the difficult one faced by Ronald Reagan when he fought the party establishment to gain the nomination. I doubt he can get there using the Republican party structure. They have shut us out, and they hate us.