Julie Chang

This is the PM edition of What's News, the top headlines and business stories that move the world today.

Four House Republicans have bucked their leadership and sided with Democrats on an attempt to extend health care subsidies for millions of Americans.

The four provided the final signatures needed to force a floor vote on the Enhanced Affordable Care Act subsidies.

Those tax credits are set to go back to levels from before the pandemic, meaning higher health care costs next year for many Americans.

One of the dissenting Republicans, New York Representative Mike Lawler, says Congress has a responsibility to act when leadership blocks action entirely.

House Speaker Mike Johnson objects to the maneuver.

He spoke on CNBC early this morning.

Siobhan Hughes, who covers Congress for The Wall Street Journal, is joining us now from the Senate Press Gallery.

Siobhan, why are these particular lawmakers going against their leadership?

So what could this mean for Americans' health care costs?

The House is also voting on a GOP health care bill today.

Is that related to the push to extend the health care subsidies?

Over in the Senate, lawmakers have approved a $901 billion defense policy package.

The National Defense Authorization Act codifies more than a dozen of President Trump's executive orders.

It now goes to the president for his signature.

The Journal's Anvi Bhutani has more.

The bill placed new limits on the president's ability to act unilaterally overseas, and it withholds some funds from the Pentagon until Congress receives unedited video footage of strikes against suspected drug boats in the Caribbean.

And one provision relating to airports has drawn criticism from lawmakers and some Trump administration officials.

That collision between an Army Black Hawk helicopter and an American Airlines jet over the Potomac River killed all 67 people aboard the two aircrafts.

Lawmakers say they hope to repeal the provision.