million barrels a day. if you take that thing out and continue these attacks we're talking about the energy supply for most of the world. >> what action do you anticipate the u.s. will take against iran? >> we could retaliate against iran and the problem with that is there could be a very quickly an escalation which would put the entire gulf in jeopardy. i'm sorry for running these figures by you but 55% of the world's oil reserves sit around the persian gulf. >> again, sources tell cnn the attack is likely to jolt oil markets and that saudi arabia's ability to resume production will determine how long that hit lasts. now to the controversy over beto o'rourke's promise to enforce a mandatory buy back of assault style weapons. it has now triggered a provocative response from republicans in his home state.