Schumer’s concerns about Europe come after Secretary of State Marco Rubio and special envoy Steve Witkoff skipped a summit last week with European allies to discuss ending the three-year war, signaling the Trump administration’s desires to press forward with its Moscow-favored proposal.

Russia launched a sweeping drone assault and airstrikes across Ukraine early Sunday, killing at least four people, officials said, after U.S. President Donald Trump cast doubt over Russian President Vladimir Putin’s willingness to end the war.

For over a decade, successive U.S. administrations, including Trump’s first, decried Russia’s armed seizure of Crimea in 2014 and said they would never recognize the land grab