On the 30th anniversary of the Challenger disaster, here's a look at how NASA's first in-flight tragedy changed their shuttle program forever. http://cnn.it/1OZV9pD | CNN

27K views · 758 reactions | A potential Republican 2020 challenger to Donald Trump says the President "showed contempt for the American people" when he held an Oval Office meeting with Russian officials in 2017 https://cnn.it/2V740zL | CNN Politics | Facebook