Dick Lugar: “He famously writes in his book he got a long message from Iran saying we would now like to explore other options for…”

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

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

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.