With the Affordable Care Act once again under fire from Republicans, a leading health care economist explains what a Republican sweep might mean for the health coverage of 45 million Americans.

Johnson is the sixth Republican elevated to the speakership since 1994. The five who preceded him all saw their time in the office end in relative degrees of defeat or frustration.

It's the second time in less than a year that House Republicans have pushed to remove their elected leader.

After tense talks in the Oval Office, congressional leaders said they were hopeful they could reach a deal to avert a partial government shutdown on Friday. But they appeared divided on Ukraine aid.

Ukraine aid is stalled in the U.S. House of Representatives. Vice President Harris said there's no other option for helping Ukraine push back against Russia's invasion.

The House and the Senate have approved a short-term measure to keep the full federal government funded until early March.