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Copyright 2017 NPR. To see more, visit http://www.npr.org/.

Indiana expanded Medicaid under the Affordable Care Act in 2015, with a few extra conditions that were designed to appeal to the conservative leadership in the state. The Federal government approved the experiment, called the Healthy Indiana Plan, or HIP 2.0, and it is now is up for another three-year renewal.

On the eve of the vote for the next chair of the Democratic National Committee, the crowded field is thinning out.

South Carolina Democratic Chair Jaime Harrison dropped out of the race Thursday and endorsed former Labor Secretary Tom Perez. The move comes days after another candidate, New Hampshire Democratic Chair Ray Buckley, exited the race and threw his support to Rep. Keith Ellison of Minnesota.

In the cavernous basement of St. Thomas Aquinas community center in South Philadelphia, a mock immigration raid is underway.

As one woman yells "Help! Help!" — pretending to be taken by federal immigration officers — volunteers being trained to disrupt a raid begin singing and sit down as one, blocking the officers' path.

Malaysian authorities say initial autopsy results show a chemical weapon — VX nerve agent — was used in the fatal poisoning of Kim Jong Nam, older half-brother of North Korea's leader Kim Jong Un.

VX is an odorless substance that can exist as liquid or gas. It can kill within minutes if it's passed through the skin. It is 10 times more toxic than sarin and classified as a weapon of mass destruction.

The war against ISIS is entering a tough new phase, as Iraqi fighters with growing U.S. assistance push into western Mosul, warns the senior American commander in Iraq, Lt. Gen. Stephen J. Townsend.

"ISIS is a brutal, brutal enemy," said Townsend, speaking in Erbil as Iraq's security forces were about to attack Mosul's airport with help from the U.S.-led anti-ISIS coalition.

Former Rep. Gabrielle Giffords has a message for members of Congress who are citing the possibility of protests as a reason not to hold town meetings: "Have some courage."

Giffords, wounded in a 2011 shooting outside a Tucson supermarket where she was meeting with constituents, was responding to a statement by Republican Congressman Louis Gohmert of Texas. Asked why he wasn't holding public meetings, Gohmert said:

President Trump has promised to build a wall along the 2,000 miles of the U.S.-Mexico border.

A third of the border already has a barrier, thanks to the Secure Fence Act of 2006, which was signed by then-president George W. Bush. That initiative ran into issues with landowners near the Rio Grande. If the wall goes forward as Trump promises, more lawsuits may be coming.

In baseball, if a pitcher wants to intentionally walk a batter, he has to actually lob the four pitches outside the strike zone. It's a technique often used to bypass a particularly strong batter, or to set up a double play.

But that rule now appears poised to change.

The Major League Baseball commissioner's office has proposed a rule change to have the pitcher forgo actually throwing four balls — instead, the bench would simply signal to the umpire that the batter will be intentionally walked.

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