Now that he has a deal with Iran, Obama must face Congress

CNN: Washington (CNN)With a historic deal meant to curb Iran's nuclear ambitions in place, President Barack Obama has ticked off another legacy-making item on his checklist -- as long as Congress doesn't get in his way.

Early Tuesday, Obama launched a sales pitch to lawmakers who remain deeply skeptical of the nuclear deal. But while Congress retains the ability to nullify Obama's accord with Tehran, the high bar for action on Capitol Hill -- including building veto-proof majorities in just over two months -- will make it difficult for opponents to block the President.

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