… And while there is no proof that Republican Senators are secretly asking Ayatollah Khameini to violate the terms of this weekend‘s nuclear deal, their obsession with slamming Iran with more sanctions is just as dangerous. We know what happened the last time a deal with Iran fell through because of Republican sabotage. Who knows what could happen this time?

A long-term Iranian nuclear deal would be a once in a generation chance for the United States to rethink its foreign policy. President Obama should go for it. But he should watch his back. Because if history tells us anything, it‘s that Republicans are more than willing to betray their country for a little short-term political gain.