NPR Staff

Despite Mitt Romney's big win in Illinois, his campaign is on the defensive Wednesday after one of his senior advisers told CNN: "I think you hit a reset button for the fall campaign. Everything changes. It's almost like an Etch A Sketch — you can kind of shake it up and we start all over again."

Leonard Wood was a U.S. general and doctor who and a very close friend of Theodore Roosevelt. He was a Republican presidential candidate in 1920 and was thought to be a shoo-in, but lost the nomination to Warren Harding. Newt Gingrich says his rival Mitt Romney is the weakest front-runner since Wood.

In 2008, Barack Obama's secret weapon during the presidential primary was a master strategy from his head delegate coordinator. They used math — not conventional wisdom — to win enough delegates to clinch the nomination. Now, the GOP is playing the same game to serve one candidate the 1,144 delegates needed to become the presidential nominee.

When 85-year-old Betty Werther was young, she traveled the world. Sixty years later, she got a call. It was from a young Portuguese medical student and he had found something that belonged to her. What he brought, however, was more than a souvenir.

What if foxes could be trained and domesticated, much the way dogs were domesticated thousands of years ago? A nearly 50-year experiment in Russia is aiming at just that.

Service members are generally screened before, during and after deployment. But the Army lacks reliable diagnostic tools, according to former Vice Chief of Staff Gen. Peter Chiarelli. He says what the recent attack on Afghan civilians proves is "just how much we don't know."

It's been a difficult week for U.S. and Afghan relations, with the Afghan president demanding U.S. troops be confined to bases within a year following an alleged shooting spree by a U.S. serviceman that left 16 Afghan civilians dead. The flared tensions could force the Obama administration to rethink its plans for withdrawal.

In 2009, when the other Big Three automakers were filing for bankruptcy protection, Ford CEO and auto-industry outsider Alan Mulally helped the company post its first annual profit in four years. In American Icon, journalist Bryce Hoffman explores how Mulally helped Ford avoid the fate of its fellow automakers.

Winning the community is becoming increasingly important for political candidates. A recent poll of Latino voters showed President Obama well ahead of his Republican rivals, but the story is not over for the GOP. In 2004, George W. Bush received 44 percent of the Latino vote, and one Republican strategist thinks they can do it again.

Israel's former intelligence chief says Iran does not pose an existential threat, and while U.S. intelligence officials do not believe Iran intends to build a bomb the U.N.'s nuclear watchdog says Iran has accelerated its uranium enrichment program. Facing tough sanctions, Iran's leaders have agreed to resume direct talks on the country's nuclear program while the drumbeats of war continue.