Watch: Maine's independent Senator King appalled by reckless Cotton letter signed by Sens. Sasse and Fischer

Arkansas' hothead freshman senator, Tom Cotton, has "split unified American sentiment on Iran into a partisan issue [even within the GOP] and undermined the president, congressional authority, and U.S. allies in the process" — with the help of signatories like Sen. Ben Sasse and Sen. Deb Fischer (bracketed comment in quotation added by AKSARBENT)..