Who votes for favorite sons anymore? All national politics is, well, national: you vote for the person you think is best for the job, regardless of where s/he comes from.
Since South Carolina is an early state Lindsey Graham hopes to keep delegates away from conservatives.
Rick Perry is clearly designed to keep Cruz from winning Texas delegates.
Bobby Jindal would serve a similar function in Louisiana.
Think of the southern states Santorum did well in back in 2012, not to mention Huckabee.
Huckabee could keep Cruz from winning the primary in Arkansas at least.
Then they all hold onto delegates and throw support to Jeb later on down the road.
THE GOP ESTABLISHMENT WILL STOP AT NOTHING TO MAKE JEB BUSH THE WINNER OF THIS PROCESS.