Dick Lugar: “I am here to testify that if he got such a call today, in some areas the President's hands would be tied.”

Congress could condition funding to develop new missiles on receipt from the administration of a comprehensive military, economic, and diplomatic strategy to bring Russia back into compliance with the treaty.

In the likely event the INF Treaty collapses in August, the only remaining bilateral U.S.-Russia arms control agreement would be New START, which expires in 2021 but can be extended by up to five years through agreement by both parties.

There is precedent for using patient diplomacy to resolve treaty violations.

The President has to want to get back into the discussions. At this point, there is not evidence that that is the case.