Trumps Next Big Test for Congress: Will They Let Him Stiff Them on Iran?

As the possibility of armed conflict with Iran grows more real, lawmakers in Congress are struggling to settle on whatif anythingthey are obligated to do as the only branch with the constitutional authority to declare war. Many lawmakers, including a odd-couple coalition of libertarian-minded Republicans and mainstream and progressive Democrats, are increasingly worried that the Trump administration might use, as a legal basis for war, the 18-year old authorization of military force, or AUMF, that Congress approved immediately after the September 11th attacks. And as the possibility of conflict inches closer, they are making a play to force the administration to come to Congress and actually convince them military action is necessary. In the Senate, Sen. Tim Kaine (D-VA) and …