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.

Sitting in the Oval Office with NATO Secretary-General Mark Rutte, and apparently fed up with being slow-walked by Russian President Vladimir Putin, Trump threatened the Kremlin with tough tariffs if it doesn't make a deal to end the war within 50 days. But perhaps more important was Trump's shift on weapons.

Ukrainian President Volodymyr Zelensky has criticized Trump’s peace ultimatum to Vladimir Putin, suggesting it’s too slow. The U.S. president on Monday said he is “very, very unhappy” with Russia and threatened the country with secondary tariffs of up to 100 percent if it does not negotiate a peace deal with Ukraine within 50 days.

President Donald Trump said his wife, Melania, is helping him with decisions about Russia. This week, he shared plans to send missiles to Ukraine and set a deadline for Russia to stop fighting.

Russia announced it has rejected President Trump's latest push for a peace deal to end the war in Ukraine.

U.S. President Donald Trump's decision to ramp up arms shipments to Ukraine is a signal to Kyiv to abandon peace efforts, Russia said on Thursday, vowing it would not accept the "blackmail" of Washington's new sanctions ultimatum.