Walmart says it will stop selling electronic cigarettes, at namesake stores and Sam's Club locations. The nation's largest retailer is responding to growing health concerns around vaping, especially among young people.

Walmart cited "growing federal, state and local regulatory complexity and uncertainty regarding e-cigarettes," saying that its stores will stop selling e-cigarettes once the current inventory is sold.

The U.S. military prison in Guantánamo Bay, Cuba, is nearly empty these days, but President Trump is explicitly ruling out the possibility of sending thousands of captured Islamic State fighters there.

"The United States is not going to have thousands and thousands of people that we've captured stationed at Guantánamo Bay, held captive at Guantánamo Bay for the next 50 years and us spending billions and billions of dollars," Trump told reporters Friday during an appearance at the White House with Australian Prime Minister Scott Morrison.

House Speaker Nancy Pelosi unveiled legislation this week that would give the federal government sweeping new authority to regulate and lower the cost of prescription drugs. Senate Majority Leader Mitch McConnell, R-Ky., declared the bill dead on arrival and told Politico it amounts to "socialist price controls."

Three Mile Island nuclear power plant in Pennsylvania stopped producing electricity at noon on Friday, part of Exelon Corp.'s plan to close and decommission the plant over the next 60 years.

The closure comes 40 years after the partial meltdown of the plant's reactor No. 2 — the nation's worst commercial nuclear accident — left the plant with only one working reactor.

In an exclusive interview with NPR, House Speaker Nancy Pelosi says she has not changed her mind on pursuing impeachment but is ready to change the law to restrain presidential power and make it clear that a sitting president can, in fact, be indicted.

Updated at 5:52 p.m. ET

Flood waters are slowly beginning to recede, but large areas of southeast Texas remain flooded Friday. Emergency crews continue to perform rescues from water-soaked neighborhoods. And officials work to get a broader sense of the damage left by Tropical Depression Imelda, a catastrophic weather event that swamped hundreds of cars and homes, and has claimed the lives of at least four people.

The thrill of delivering newborns helped pull Dr. Jack Feltz into the field of obstetrics and gynecology.

More than 30 years later, he still enjoys treating patients, he says. But now Feltz is also working to change the way doctors are paid for maternity care.

Updated at 7:20 p.m. ET

President Trump blamed "a political hack job" for reports that a whistleblower has charged he had an improper conversation with a foreign leader.

The Washington Post on Friday reported that the conversation in question involves Ukraine.