Hillary Clinton and Donald Trump had strong Super Tuesday showings, but their rivals didn't let up. Bernie Sanders won 4 states. Ted Cruz captured three. And, Marco Rubio won the Minnesota caucuses.
The accomplished neurosurgeon, a surprising presidential candidate, was a top-polling candidate in 2015 before the GOP primary race refocused on national security and foreign affairs.
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.
The New Jersey governor and former presidential candidate faces a storm of criticism at home for his decision to endorse Republican front-runner Donald Trump.
Rep. Tom Marino, who endorsed Donald Trump, and GOP strategist Mark McKinnon talk to NPR's Morning Edition about Trump's appeal. Marino calls Trump a maverick; McKinnon says the race isn't over.
Hillary Clinton and Donald Trump won big across the board, but Ted Cruz pulled off a surprise in Oklahoma, and Marco Rubio finally won his first state in Minnesota.
Given his growing lead in delegates, Donald Trump's main obstacle may now be not another candidate but the prospect of an open convention where no one has the votes for a first-ballot nomination.
Hawaii Rep. Tulsi Gabbard, who endorsed Bernie Sanders, and Georgetown University's Mo Elleithee say though Hillary Clinton is leading the race, Sanders has brought focus and new voices to the party.