Happening now, President Biden creates confusion over the US stance on Taiwan after

avowing a US military response if China invades.

Beijing is accusing him of playing with fire

as the White House attempts some damage control

and denies any change in policy.

Also tonight, 35 tons of baby formula land here in the United States

from overseas amid the dire shortage that has put some infants in the hospital. We'll

break down who will benefit from this urgent

shipment and how much more is needed to ease the crisis. And the Trump versus

Pence feud over the 2020 election is escalating tonight on this the eve of the Georgia primary.

Trump is lashing out at his former Vice President calling him, quote,

desperate as they stumped for rival candidates in a Georgia showdown.

Penn speaks out on the campaign trail this hour.

We want to welcome our viewers here in the United States

and around the world.

I'm Wolf Blitzer, you're in the United States and around the world.

I'm Wolf Blitzer.

You're in the situation room.

We begin with the fallout after President Biden's surprising stance on a potential Chinese

invasion of Taiwan. His talk of a U.S. military response is sewing new uncertainty about his policy and

raising serious tensions with China.

CNN's Chief White House correspondent Caitlin Collins is in Tokyo for us.

...