The U.S. says Iran is behind the tanker attacks in the Gulf of Omar. Pentagon released video allegedly showing the Iranian Revolutionary Guard alongside the Japanese tanker removing an object the U.S. says was a mine that had not exploded. CBS News national security correspondent David Martin joined CBSN AM with the latest. Source

The District of Columbia is considering whether to allow felons to vote while they’re still incarcerated. Here’s where some of the 2020 presidential contenders stand on the question Source

Democrats are launching a counter-messaging campaign as President Trump launches his reelection campaign Source

The Toronto Raptors defeated the Golden State Warriors, 114-110, to win their first-ever NBA title. They’re the first non-U.S. team to win. Bill Reiter of CBS Sports HQ broke down how the Raptors did it, and what the outcome means for free agency. Source

NOAA scientists say 98% of the dolphins that stranded themselves along the Gulf Coast have died Source

Ebola outbreak has killed more than 1,400 people since it was declared in August, making it the second-deadliest in history Source

The 20 Democratic candidates who qualified for the first primary debates were divided into two groups of ten. The debates will be held June 26 and 27. CBS News White House correspondent Weijia Jiang and Niall Stanage, White House columnist for The Hill, join CBSN with more. Source

Barry Taul embalms bodies for a living – but he said what his boss was doing made him sick Source

The 20 candidates participating in the debates were divided into two groups of 10 later this month Source

Hopefully, it finds some aliens sporting Vulcan salutes next Source