with cnn. >> the resort to military power would be catastrophic. it would be a huge -- not a huge blow to the international system. >> reporter: just last month russia sent nuclear capable bombers to venezuela, training exercise and as a show of support for maduro. russia has been supplying the regime with military equipment, bailing it out with cash, building a partner in the americas in exchange for oil and influence. adding yet another layer to venezuela's precarious struggle for power. of course, everybody is watching. what about the safety of those u.s. diplomats in caracas? the u.s. is taking pains to stress their safety saying we are prepared to do the things we need to do to make sure we keep our people safe with the full arrange of government resources ready. jake? >> michelle kosinski at the state department. thank you. >> joining me now is florida senator marco rubio.