Rubio has also received criticism from both sides of the aisle for seeming to waver on whether or not he will vote in support of the very measure he helped draft, stating recently that unless border security provisions were strengthened he would not.
"If we have an immigration reform bill that secures the borders, ensures that we don't have another wave of illegal immigration in the future and protects the American taxpayer by denying federal benefits to those who have violated our immigration laws, we will have immigration reform," he recently said on Fox News. "If we fail to do that, if the Democrats or whoever refuses to agree to that we will not. It hinges on that."
Rubio has left himself room to walk away from the table while still earning high marks for his willingness to work with Democrats if he can't pull mainstream conservative support for the legislation. Bush, however, appears prepared to gamble that the emerging legislation will be politically smart to embrace – both for himself and for his party.
"I would argue that Republicans win when we are positive and hopeful and aspirational and that we draw people towards our cause when we do that," he said. "And that if we just play the game that we're for less government, we don't believe in a muscular government, that message is not aspirational, it's not hopeful, it's not particularly optimistic and we could lose."