President Donald Trump is frustrated with Russia and Ukraine and could instruct his administration to pull out of peace talks.

Many Russians cheered President Trump’s election because they thought he could make a deal for a negotiated peace in Ukraine that would satisfy the Kremlin. Three months into Mr. Trump’s second term, the disappointment in Moscow is palpable.

Trump spoke shortly after Marco Rubio warned that the U.S. may “move on” from trying to secure a Russia-Ukraine peace deal if there is no progress in the coming days.