Happening now President Biden reveals the United States may move some troops soon as the

White House says a Russian invasion of Ukraine is imminent. We're learning that Ukrainian officials have a different

take on the urgency of the threat. Also tonight the House Speaker Nancy Pelosi

announces she's running for re-election to Congress. we're going to break down what it means for

her political future and for her party.

And the Trump law lawyer behind a six-step plan to overturn the presidential election is ordered to hand over email

subpoenaed by the January 6th Select Committee. We're now learning the extent of

John Eastman's work on behalf of the former president in the days leading up to the insurrection.

We want to welcome our viewers here in the United States and around the world.

I'm Wolf Blitzer, you're in the situation room. We begin with the threat of an imminent war in Ukraine.

President Biden is sharing new information about US moves

to deter a Russian invasion as 8,500 American troops are now on a state of

heightened alert.

Our Chief White House correspondent Caitlin

spoke with the president today.

Our Chief International Correspondent Clarissa Ward

has an exclusive interview with Ukraine's foreign minister.

Caitlin, let me go to you first.

What is the White House saying tonight about predicting Putin's next move?

Well, President Biden spent the morning meeting with his national security team and afterward he told us just how difficult he believes it is to

predict what President Putin is ultimately going to do.

Something that President Biden says he doesn't even believe the Russian leaders

...