SCOTUS is expected to rule on a Texas abortion case that requires abortion providers to meet certain standards of care. With an evenly divided court, will the justices be able to avoid a deadlock? Plus, Donald Trump fires his campaign manager and aims to construct a more orderly campaign. But can Trump ever really change?

Bernie Sanders has yet to end his campaign for the Democratic nomination or endorse Hillary Clinton. As CNN's Jeff Zeleny says, Sanders wants to keep his movement alive and avoid being labeled a "sellout" by his enthusiastic supporters. Florida Sen. Marco Rubio is expected to announce a change in position and run for reelection this fall.

Republicans debated in Florida ahead of the state's winner-take-all primary next week. Debates have become raucous events for the GOP, but the policy-focused debate led Republican frontrunner Donald Trump to call the debate "civil." With over 300 delegates at stake on Tuesday, Florida Sen. Marco Rubio and Ohio Gov. John Kasich face crucial home state tests of their viability.

Donald Trump racked up seven wins on Super Tuesday and holds a 100 delegate lead over Ted Cruz which has establishment Republicans worried about his frontrunner status. Joined by 2008 Republican nominee Mitt Romney, Cruz and Marco Rubio have launched sustained attacks of Trump's conservative credentials and record. At times, the Republican race took a decidedly personal -- and anatomical -- turn.

Gwen Ifill joins Amy Walter of the Cook Political Report and Tamara Keith of NPR to discuss the latest in politics, including growing Republican concerns over Donald Trump’s ascendancy, Sen. Marco Rubio's and Sen. Ted Cruz’s strategies for Super Tuesday, Hillary Clinton and Sen. Bernie Sanders’ renewed criticism of Trump’s rhetoric and the grim future facing the GOP.

The day after the final Republican debate before Super Tuesday, presidential frontrunner Donald Trump unveiled the endorsement of New Jersey Gov. Chris Christie. Meanwhile, Marco Rubio is ramping up his attacks on Trump, labeling the billionaire businessman a "con artist." Voters in 12 states head to the polls on Tuesday, and half the delegates needed for the GOP nomination are up for grabs.

With one more contest down and one less contender in the 2016 race, Donald Trump celebrated his solid victory in South Carolina as the remaining GOP hopefuls prepared for new battlegrounds.

Just 24 hours after Democrats Hillary Clinton and Bernie Sanders squared off in their sixth debate, we examine the state of the 2016 presidential campaign from the site of the PBS NewsHour debate in Milwaukee, Wisconsin. After a double-digit loss in New Hampshire, the former secretary of state is aiming to blunt Sanders' momentum.

Hillary Clinton and Bernie Sanders met in their first one-on-one debate where they clashed over Wall Street, foreign policy and what it means to be a progressive. Days before the New Hampshire primary, Sanders leads Clinton by 20 points in the Granite State. On the Republican side, Donald Trump’s second-place finish in Iowa has shaken up the race for the GOP nomination.

With just days until Iowa voters head to the caucuses, polls show that no candidate has the race locked up. On the Republican side, frontrunner Donald Trump skipped the latest GOP debate over a dispute with Fox News. He held a fundraiser to support veterans issues instead. But seven other candidates debated immigration and terrorism. How did Trump's absence affect Ted Cruz and Marco Rubio?