republican senator bob corker has released a blast at his own party saying fellow republicans are in a cult-like situation with president trump. let's go to our correspondent manu raju up on capitol hill. manu, so what is corker saying about his party leaders and why? >> reporter: well this is the -- the heart of the issue are president trump's tariffs on the european union on mexico and on canada and republicans are by enlarge opposed to the tariffs but they are badly divided abo whether or not to confront the president on this issue in this election year. now at issue is a bill that senator corker has proposed to rein in the president and giving the president of congress -- a check on the president's authority on this area. corker has been demanding a vote on his -- on this bill offering it as an amendment to a different measure dealing with defense policy but the republican leaders are opposed