150 House Dems Sign A Letter Backing Obama on Iran

++The House leadership sent a letter signed by 150 Democrats to the White House backing the administration's position on the Iranian nuclear deal.

++This letter is important because it demonstrates that Congress doesn't have the votes to kill the deal. That means that Congress could not override a veto if it voted to disapprove of the deal.

++To the negotiators, it sends a message to the P5+1 countries that President Obama still has the political clout to push the deal through.