announcement this month. jeb bush said he won't stand by the deal because it was from the start, quote. even before the agreement was reached, wisconsin governor scott walker said the threat is so grave, that he would undo the deal right after his inauguration. >>ly pull back on that if i am elected to be president. for the region and the world last thing we need is a nuclear armed iran. >> reporter: the conservative legacy pact is now running an ad about the iran deal that morph's hitler chamberlain. they know republicans will blame clinton if the deal collapses and if comes together. >> if it passes muster they