In Russia, U.S. National Security Adviser John Bolton said Tuesday the Trump administration is holding firm to its plan to withdraw the U.S. from the 1987 Intermediate-Range Nuclear Forces Treaty. Bolton made the remarks after meeting in Moscow with Russian President Vladimir Putin.

John Bolton: “In terms of filing the formal notice of withdrawal, that has not been filed. It will be filed in due course.”

Bolton’s remarks came a day after President Trump said he hopes to expand the nuclear arsenal. The U.S. already has an estimated 6,800 nuclear warheads.