American Robert Gilman released from Russia prison & flown home; Campaign primary day in six states; The Hill's Miranda Nazzaro on WH not releasing AI safety/security testing guidelines

American Robert Gilman is released from prison in Russia and flies home. President Donald Trump says it was after he spoke with Russian President Vladimir Putin, it was for humanitarian reasons due to Gilman's poor health and "Russia asked for no one in return"; Campaign primary day in six states. Republicans in South Carolina are choosing a replacement nominee for the late Sen. Lindsey Graham, and among whose running is his sister, Darline Graham, who has been appointed to replace him, while Democrats in Minnesota and Wisconsin are faced with candidates pitting the moderate and progressive wings of the party against each other, for a Senate seat & governorship, respectively; Today is the anniversary of President Trump's declaration of a crime emergency in Washington, DC that led to the deployment of thousands of National Guard troops patrolling the streets; White House has reportedly developed guidelines for voluntary testing of artificial intelligence models for safety and security, but is sharing them only with certain technology companies and not the public. We will talk about that with The Hill's Senior Technology Reporter Miranda Nazzarro. (41) Learn more about your ad choices. Visit megaphone.fm/adchoices