Trump-a-palooza's Iran problem

Donald Trump has hit the campaign trail in Texas as the clock ticks down to the midterms.   But is the president becoming more of a hindrance than a help to Republican candidates? With the war in Iran dragging on and taking a toll on Trump’s standing, could his biggest political liability now be the conflict he started?   Today, Nate Swanson, a former Iran negotiator on whether Donald Trump is getting ready to declare the war is over.  Featured:   Nate Swanson, Director and Resident Senior Fellow at the Atlantic Council's Iran Strategy Project