The Supreme Court ruled Monday that Arizona has no right to demand documents proving citizenship when people register to vote. In a 7-2 decision, the court said the National Voter Registration Act trumps state law. At the same time, the court told Arizona officials how to get what they want, anyway.

Republican Gov. Jan Brewer, one of President Obama's staunchest critics, has confounded conservatives in her own party by pushing for an extension of Medicaid coverage in the state.

The immigration bill now under consideration by the Senate calls for drones to patrol the U.S. border 24/7. Supporters say that means more drones are needed. But critics argue there's no evidence the drones already flying are cost-effective.

Dr. Keith Layne's practice was destroyed in the tornado that hit Moore, Okla. Now the family practice doctor is scrambling to treat patients while worrying about their mental and physical health.

In Arizona, a federal judge ruled against the Maricopa County Sheriff's Department, saying it used racial profiling to enforce the state's tough immigration laws. Host Scott Simon talks with NPR's Ted Robbins about the ruling.

In Oklahoma on Friday, state emergency officials said Monday's tornado destroyed 1,150 homes. An unknown number of structures were damaged. The state has registered more than 1,800 insurance adjusters.

Arizona has passed a law making it illegal for cities to destroy guns bought in buy-back programs. The new law kicks in this summer, and requires cities to sell the guns that are turned in.

The Senate's immigration bill would require all U.S. employers to use E-Verify, a federal database that checks a worker's immigration status instantly. While businesses have had difficulty using the system in the past, officials say its results are now accurate 98 percent of the time.

Almost half of all undocumented immigrants living in the U.S. came legally — but then overstayed their visas. In an effort to curb those "overstays," the Senate is considering a bill that mandates tracking visitors' visas when they leave the country, not just when they arrive.

Nearly 20 people have been killed by Border Patrol agents along the Southwest border since 2010. Some agents have been exonerated, but for those who have not — and victims' families — justice drags on.

The steady stream of good news about the recovering housing market isn't without its limits. Thad Salter and his family live in the Phoenix suburb of Maricopa since moving from California in 2006. He's seen his home drop in value by more than half and has been underemployed as an human resources professional since 2008. NPR's Ted Robbins reports that, for the Salters, the housing news isn't as good as reports in the housing industry would suggest.

Thousands of people were expected in Las Vegas for the first weekend of NCAA men's college basketball tournament. It's one of the most lucrative weekends in Las Vegas. Casino officials say it draws more people than the Super Bowl.

Nogales, Ariz., is home to one of the nation's busiest ports of entry. Trucks line up for inspection before heading to grocery stores in the U.S. But the sequester is forcing the ports to make cuts, leading some to fear higher prices for food and strained relationships with foreign trading partners.

With baseball gone from the Olympics, the World Baseball Classic is the only international professional baseball tournament. Former Yankees and Dodgers manager Joe Torre said he put on a uniform again to manage the U.S. team because it's a privilege.

Congress is considering whether to turn three top-secret sites involved with creating the atomic bomb into one of the country's most unusual national parks. Critics question the need for a park that celebrates nuclear weapons. Supporters say the park would ask tough questions about lessons learned.

In less than two years, U.S. Border Patrol agents have killed 18 Mexicans along the border — including eight people throwing rocks. Now the Department of Homeland Security is examining its policy on deadly force along the border.

It's been more than a month since the government began accepting requests for its Deferred Action for Childhood Arrivals program, a new policy for young people brought to the U.S. illegally as children. It means that for two years they can avoid deportation and get a work permit.

Young people brought to the U.S. illegally may begin applying for a deportation deferral and a two-year work permit beginning Wednesday. The Obama administration put elements of the DREAM Act into effect even though it hasn't been passed by Congress.

Long a staple of Western wear, the bolo tie is getting the museum treatment in Phoenix. The Heard Museum celebrates the tie's history and artistry in a new exhibit where simple designs are displayed alongside more traditional works of art in the high-ceilinged gallery.

The Obama administration wants 10 percent — or $450 billion — in defense cuts over the next decade. It's the first time since 2001 that the Defense Department has had to fight for funding. That has meant lobbying Congress and even going to the public for support.