President Obama has nominated centrist Merrick Garland, a D.C. appeals court judge, to the U.S. Supreme Court. We'll discuss the nomination and other major political developments, including Tuesday's presidential primaries, which saw major victories for front runners Donald Trump, Hilary Clinton and Ohio governor John Kasich, who kept his campaign alive by winning his home state.
Politics Roundup: A Nominee for the Supreme Court; Big Wins for Trump and Clinton
Julie Bykowicz, political writer, Associated Press
David Brady, professor of political science, Stanford University; senior fellow at the Hoover Institution
A.J. Delgado, commentator, columnist, lawyer and Donald Trump supporter
Rory Little, UC Hastings law professor