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After Bernie Sanders lost four of the five presidential primaries Tuesday night, the Democratic hopeful's campaign is laying off many staffers.

Noting that 80 percent of the nominating contests have been completed, Sanders spokesman Michael Briggs said in a statement that "we no longer require many of the loyal and dedicated state and national support staffers who helped us."

Championing "stability" and protectionism, Donald Trump managed a sendup of the foreign policies of the last three American presidents, as well as the candidate he is likely to face this fall in a general election — Hillary Clinton.

"With President Obama and Secretary Clinton, we've had ... a reckless, rudderless and aimless foreign policy — one that has blazed a path of destruction in its wake," Trump charged in a sober foreign policy address at a hotel in Washington. He added, "[T]he legacy of the Obama-Clinton interventions will be weakness, confusion and disarray."

Need knee replacement surgery? It may be worthwhile to head for Tucson.

That's because the average price for a knee replacement in the Arizona city is $21,976, about $38,000 less than it would in Sacramento, Calif. That's according to a report issued Wednesday by the Health Care Cost Institute.

Missouri's so-called religious freedom bill may be dead for this year. The amendment to the state Constitution would have protected people who didn't want to provide services related to same-sex marriages, including clerks, clergy and businesses.

Wednesday's 6-6 vote by a House committee stopped the measure from advancing, The Associated Press reports. Three Republicans joined three Democrats in opposition, the AP says.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

People who sustain a concussion or a more severe traumatic brain injury are likely to have sleep problems that continue for at least a year and a half.

The Supreme Court appears to be leaning in favor of reversing the corruption conviction of former Virginia Gov. Bob McDonnell, based on Wednesday's oral arguments.

At the case's core is how to determine a clean "official act" from a corrupt one, and where the line is.

Justice Elena Kagan said during oral arguments that the court is concerned both about overzealous prosecutors and giving a free pass to corrupt politicians.

Stacy Bannerman didn't recognize her husband after he returned from his second tour in Iraq.

"The man I had married was not the man that came back from war," she says.

Bannerman's husband, a former National Guardsman, had been in combat and been diagnosed with post-traumatic stress disorder. He behaved in ways she had never expected, and one day, he tried to strangle her.

"I had been with this man for 11 years at that point, and there had never been anything like this before," Bannerman said. "I was so furious and so afraid."

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