NPR News covers primaries in Alaska, Wyoming, and Florida, highlighting a Senate race with two candidates named Dan Sullivan and Florida’s 19th district controversy over out-of-state candidates. President Trump explains scaling back U.S.-South Korean military exercises, citing relations with Kim Jong-un. The episode also reports on record-high kindergarten vaccine exemptions, looming U.S. tariffs on Canadian goods, and the start of the trial for the man accused of orchestrating Tupac Shakur’s murder.