Despite the party line stances and positions, Rand Paul, Marco Rubio, Ted Cruz, Rick Perry, and every other GOP headliner are not political outsiders, no matter how thick they want to coat their speeches with that rhetoric.
Then again, Sen. Paul can shout about whatever he wants, because conventional wisdom says he will remain in the race just long enough to test the waters of both public opinion and fundraising, before retreating to the safety of his Senate seat around the time the filing deadline for his reelection bid comes up. In other words, the speeches may be lofty, but he'll wind up doubling down on the safe bet after a few hands at the big table.