It's primary day in Texas. Voters there will decide who to nominate for governor, attorney general and a host of other offices.

New voting maps in Texas are already facing legal challenges for discrimination, but that's just the start of how gerrymandering affects the nation's democracy.

COVID-19 vaccine mega-sites across the U.S. are closing down due to the drop in demand for the shot. Much of the hard work of getting people vaccinated will now fall on primary care providers.

COVID-19 vaccine mega-sites across the U.S. are closing down due to the drop in demand for the shot. Much of the hard work of getting people vaccinated will now fall on primary care providers.

As power outages begin to ease in Texas, utility problems still remain. High demand continues to stress hundreds of local water systems as millions of Texans are now under orders to boil water.

Texans are experiencing the winter storm of the century: sub-freezing temperatures, frozen precipitation and prolonged power outages. The storm is reaching as far south as the Gulf Coast.

Sen. Ted Cruz played a role in amplifying the false claims of voter fraud that drove the insurrection at the Capitol. Now the question is whether he faces political consequences at home.

The role of state attorneys general has shifted toward national politics in recent years, including Ken Paxton of Texas, a Republican, who aligned himself with Trump through attention-getting suits.

An NPR investigation shows that black and Latino neighborhoods in four large Texas cities have fewer coronavirus testing sites, leaving communities blind to potential COVID-19 outbreaks.

When will states reopen? We talk to reporters in Texas, which will start reopening Friday, California, which has a four-phase reopening plan, and Arizona, which extended its stay-at-home order.

GOP Sen. Martha McSally of Arizona faces questions about gun control measures as the Senate returns to debate the issue. Her Democratic opponent Mark Kelly is pressing for new restrictions.

Trump's reelection campaign is trying to woo Latino voters in what's likely to be a key swing state: Arizona. But with the president's record of racially charged remarks, it may be an uphill effort.

After high turnout in the 2018 midterms gave Democrats big gains, several Republican-controlled states are considering changing the rules around voting in ways that might reduce future turnout.

After Democrats surged to new levels of success in Arizona last fall, Republican state lawmakers there have proposed new voting laws that could make casting a ballot there more complicated.

Arizona voters have elected Democratic Congresswoman Kyrsten Sinema to be the state's first female U.S. senator. She defeated Republican Rep. Martha McSally.

The Associated Press projects that Democrat Kyrsten Sinema has defeated Republican Martha McSally, flipping the seat held by Republican Jeff Flake.

GOP Sen. Jeff Flake's retirement has set the stage for a showdown in Arizona. Republican Martha McSally and Democrat Kyrsten Sinema are neck and neck, according to recent polls.

Arizona Gov. Doug Ducey announced Tuesday that former Sen. Jon Kyl will replace the late Sen. Jon McCain. One of Kyl's first orders of business will be to vote on a new Supreme Court justice.

GOP candidates are trying to prove they're with President Trump on immigration. But Arizona's late primary means little time to shift to the general election, when Democrats hope to flip the seat.

Republican Debbie Lesko won by 5 points in a district near Phoenix that President Trump won by 21 percent. National Republicans spent about $1 million to defend the seat.