President Trump spent Thursday in Texas. Gromer Jeffers, a political writer for the Dallas Morning News, joins “Red and Blue” to discuss the state Democrats say could become a battleground ahead of 2020. Source

President targeted Joe Biden, Elizabeth Warren and Beto O’Rourke Source

Mulvaney says delay in Ukraine aid linked to DOJ investigation; Astronauts ready for historic all-female spacewalk. Source

Facebook CEO Mark Zuckerberg addressed the importance of freedom of expression Thursday, saying the social platform won’t police political speech. The Washington Post tech reporter Cat Zakrzewski joins CBSN’s Elaine Quijano to discuss his speech at Georgetown University. Source

Rick Perry tells Trump he’ll resign as Energy Secy; NASA prepares for first all female spacewalk Source

Minnesota Senator Amy Klobuchar announced she recieved $1.1 million in campaign donations in 24 hours after Tuesday’s Democratic debate. Klobuchar is wasting no time getting back on the campaign trail, visiting all 10 counties in New Hampshire in just 30 hours. CBS News 2020 Campaign reporter Nicole Sganga joins CBSN for this edition of 2020 Daily Trail Markers. Source

A new group is calling on 2020 Democratic presidential hopefuls to name their potential Supreme Court nominees. Christopher Kang, co-founder and chief counsel of “Demand Justice,” joins CBSN’s “Red & Blue” to discuss his organization’s recent release of 32 names Democratic candidates should consider. Source

Bernie Sanders raised $620,000 but still holds the lead in fundraising Source

Facts and figures about NASA’s first all-female spacewalk Source

The acting White House chief of staff said a delay in millions of dollars in aid to Ukraine was due to concerns about corruption. Mick Mulvaney’s comments sparked a firestorm, and he is now trying to walk them back. Nancy Cordes has the latest. Source