u.s. and russia. here's president trump's take. >> the main thing and we discussed this also is zero collusion. it has had a negative impact upon the relationship of the two largest nuclear powers in the world. we have 90% of nuclear power. it's ridiculous. it's ridiculous what's going on with the probe. >> a strange turn to the mueller probe and oblique reference to u.s. and russian nuclear weapons. top officials have accused russia of violating the inf treaty in europe. that arms control agreement stated neither side could deploy short or intermediate range ground-based nuclear or conventional missiles like the one you see there. the vice chairman of the joint chiefs here testified in march of last year that russian was threatening all u.s. forces in europe with these land-based