A new book alleges that President Donald Trump told donors he threatened Russian President Vladimir Putin with bombing Moscow if Russia invaded Ukraine.

Rep. Eugene Vindman (D-VA) joins MSNBC’s Ali Velshi to discuss Donald Trump’s shifting explanation of the Ukraine weapons pause and why, according to Rep. Vindman, it’s “dangerous” that our “Commander-in-Chief is the last to know.

Following the Pentagon announcing a pause on weapons, the U.S. president said Ukraine must defend itself from Russia.

Supporters of US President Donald Trump in the Senate are calling for an investigation into Defense Secretary Pete Hegseth, who reportedly suspended military aid to US allies, most notably Ukraine, without presidential approval,

President Donald Trump said he plans to make a "major statement" on Russia on Monday amid Vladimir Putin's continued attacks on Ukraine.

In a wide-ranging interview with NBC News, Trump talked about tariffs, sending Patriot missiles to NATO for Ukraine and how he'll sell his recently passed "big, beautiful bill."

U.S. Secretary of State Marco Rubio said Thursday that the United States and Russia have exchanged new ideas for Ukraine peace talks after he met with his Russian counterpart in Malaysia.