President Donald Trump doubled down on his threat of Russian President Vladimir Putin facing "very severe" economic consequences if he blocks the Ukraine peace process. He reiterated the warning when speaking to reporters aboard Air Force One while on his way to Alaska for a high-stakes talk with Putin.The meeting in Alaska marks the first U.S.-Russia summit since 2021, and is expected to focus on ending Moscow's war on Ukraine. Additionally, Putin hinted that Russia could be open to reaching a nuclear arms deal with the U.S., though it is unclear if that would be on the agenda for Friday.This is a developing story, please check back for updates.