Why Tulsi Gabbard is trending

<p>The Director of National Intelligence asked the Justice Department on Wednesday to investigate the actions of former government officials which led in part to President Donald Trump’s first impeachment inquiry. CNN's Evan Perez explains what we know about the criminal referral and if it could lead to actual prosecutions. Discover more videos, including live streams and exclusive storytelling, on our <a href="https://www.cnn.com/watch">Watch</a> page.</p>