Iran and the U.S. ramp up military threats as diplomatic discussions are underway in Geneva to rein in Tehran’s nuclear program. National Urban League President Marc Morial remembers the life and legacy of civil rights icon and trailblazer in American politics Reverend Jesse Jackson who died at the age of 84. NBC News Chief Data Analyst Steve Kornacki joins Meet the Press NOW to preview the Texas Senate primary election as early voting kicks off.