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.

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

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 ...

Ukrainian President Volodymyr Zelenskyy is scheduled to meet President Donald Trump at the White House.On the agenda — a deal ...

Pete Hegseth faces backlash for refusing to call Russia the aggressor in the Ukraine war, despite past Fox News remarks labeling Putin an authoritarian and Moscow's actions an invasion.

Obama officials and Trump critics spoke harshly of U.S. Defense Secretary Pete Hegseth after he took returning Ukraine to its ...

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 ...

Returning Ukraine to its pre-2014 borders is an "unrealistic objective," U.S. Defense Secretary Pete Hegseth said Wednesday.

Supporters of Ukraine and members of the Ukrainian community hold a ... [+] rally to mark the one-year anniversary of ...

Former Director of European Affairs for the U.S. National Security Council Lieutenant Colonel Alexander Vindman joins Ali ...