Pass it or not, the R party will face Hillary Clinton in 2016. It is unlikely the R party, given they have rejected their base voters, can win the 2016 presidential election.
However, if the R party passes amnesty, the R party will not win a presidential election and most state elections ever again.
Amnesty is 9 million Dem voters for every 1 million R voters, if that. The math is well known.
First of all, I do not think Hillary will win the Dem primary. Hell, she could not even beat Obama in the Primaries. And there is one guy out there who wants the Presidency so bad, he will do and say anything to destroy Hillary. That is Martin O’Malley - the MD governor. Has anybody listen to this guy? He will say and do anything to win and he has already cemented Maryland as the Freak State.