As part of a showdown over whether Apple must develop a way to unlock the iPhone owned by a San Bernardino shooter, Apple and the FBI faced off Tuesday before members of the House Judiciary Committee.
At issue is whether a Texas law requiring clinics to meet surgical-center standards is aimed at safeguarding women's health, or unconstitutionally limiting a woman's right to terminate a pregnancy.
Scenes from the day, from polling places and campaign events to candidate speeches at some unique venues.
One thing is clear: Democrats and Republicans had very, very different priorities tonight
On the Republican side, Donald Trump is projected to win in Georgia. For the Democrats, Hillary Clinton takes Georgia and Virginia, while Bernie Sanders won in his home state of Vermont.
Bernie Sanders delivered a victory speech to supporters in his home state of Vermont after he was projected to win the Super Tuesday primary there.
NPR's Ari Shapiro interviews Rep. Joaquin Castro of Texas about how things are looking for Hillary Clinton on Super Tuesday. She is projected to win the Democratic primaries in Virginia and Georgia.
Donald Trump is projected to win the Republican primary in Georgia. NPR's Ari Shapiro talks to Ron Nehring, California chairman for the Ted Cruz campaign and formerly the California GOP chairman.
Polls begin to close in about a dozen states voting in the Super Tuesday primaries.
Voters in more than a dozen states headed to the polls Tuesday, casting ballots across the country in the biggest primary day by far.
There are contests in 13 states on Super Tuesday. The NPR politics podcast team looks at how that affects the campaigns' strategies, and whether a day packed with primaries favors particular candidates.
Voters in about a dozen states are going to the polls Today. On the Democratic side, Hillary Clinton is looking to gain a sizable lead in delegates over Bernie Sanders. But Sanders has been focusing on peeling off victories in some key states.
President Obama plans to nominate someone to replace Supreme Court Justice Scalia. But Republican leaders say the Senate won't consider his pick. A White House meeting between the two sides failed to bridge the divide.
There is more at stake Tuesday than at any other point of the presidential primary season. About a dozen states are voting, with Republican Donald Trump and Democrat Hillary Clinton favored in many.
It's the biggest day of voting in the 2016 primary season. Donald Trump is looking to solidify his path to the GOP nomination, while Ted Cruz and Marco Rubio are looking to knock him off course.
The realization that Donald Trump is the likely GOP nominee is dividing lawmakers on Capitol Hill into different camps: Republicans who think he will ruin the party; Republicans who think he can actually win; and Democrats who think he will put more races into play than originally forecast.
Everyone takes it for granted that The Clintons are popular with African-American voters. Where did that goodwill originally come from?
Follow news and updates from the field as 13 states vote
Any candidate who wants to be the Republican nominee "must reject any group or any cause that is built on bigotry. This party does not prey on people's prejudices," House Speaker Ryan said Tuesday.
Donald Trump is collecting wins in the presidential contests. Ohio Gov. John Kasich is one of the remaining candidates in the race. He talks to Steve Inskeep about why voters haven't supported him.