It remains to be seen just how lasting and severe President Donald Trump’s turn against Vladimir Putin will be. Trump has criticized the Russian president in unprecedented terms in recent days and signaled he’ll send vital weapons to Ukraine.

Donald Trump on Monday threatened to impose "severe tariffs" on Russia unless a peace deal was reached with Ukraine within 50 days.

Melania Trump has highlighted Russia's continued attacks on Ukraine in private conversations, President Trump said on Monday.

But his frustration with Putin has grown. Last week, the president said the United States was taking “a lot of bullshit” from Putin. Today, he authorized a significant shipment of U.S. defensive weapons to Ukraine via NATO and threatened Russia with new tariffs if the war does not end in 50 days.

President Trump reveals how Russian leader 'talks nice, then bombs everybody' as the U.S. prepares to send Ukraine Patriot missiles under a NATO agreement.

Vladimir Putin’s conduct has prompted Donald Trump’s shift as Russia’s war effort in Ukraine has gotten only more aggressive.

Trump announced fresh military support for Ukraine and threatened sweeping tariffs on Russia's trading partners, in a bid to pressure Moscow into ending its war within 50 days.

Vladimir Putin has "played Donald Trump like a violin" - but may have now pushed things too far, the former head of MI6 has warned.