NPR's Mary Louise Kelly talks with retired Lt. Colonel and former Trump staffer Alexander Vindman on Russia, Ukraine and his new book.

One of the most prolific figures to emerge out of President Trump's impeachment saga is questioning what Vladimir Putin has on the commander in chief.

Even before the new Trump administration began to erode U.S. influence on autocratic countries, a diverse array of experts ...

However it was during Trump’s first impeachment trial that he rose to prominence – giving evidence about phone calls in 2019 in which the President appeared to pressure Volodomyr Zelenskyy to ...

Trump's foreign policy faces scrutiny as former National Security Council official Alexander Vindman warns he's "giving ...

A key witness in Donald Trump's first impeachment saga suggested Tuesday that the U.S. president might have been compromised ...

The Trump administration is facing widespread criticism for aligning with authoritarian regimes—including Russia, North Korea ...

Col. Alexander Vindman, the National Security Council staffer set to deliver dramatic testimony confirming that President Donald Trump sought dirt from Ukraine on a political rival, is a Jewish ...

WASHINGTON — Eugene Vindman, whose Jewish immigrant story ... Among the officials that Alexander, a Ukraine specialist at the White House, first notified was his brother Eugene, an ethics ...

Trump says the U.S. and Ukraine have reached agreement on a rare earth minerals deal. Alexander Vindman joins to discuss that and more.

Col. Alexander Vindman said. "It doesn't make a huge amount of sense. He's not getting anything for it right now." Under pressure from the Trump administration, Ukraine has reportedly agreed to ...

As Russia’s full-scale invasion of Ukraine reaches its third anniversary on February 24, the conflict has taken a dramatic ...