A White House staffer named in House Intelligence Committee Chairman Adam Schiff’s impeachment report is refuting the suggestion that he may have been part of a back channel to the president on Ukraine. CBS News senior investigative correspondent Catherine Herridge spoke to CBSN’s “Red & Blue” about her interview with the insider, Kash Patel. Source

House Judiciary Cmte. holds public hearing; Researchers test dog brain cancer treatment Source

Joint Base Pearl Harbor-Hickam said three Defense Department civilians were reportedly shot Source

Republicans argued Wednesday that Democrats are using the impeachment inquiry to meet a political timeline. Rebecca Roiphe, a CBSN legal contributor and former assistant district attorney in the New York County’s District Attorney’s office, joins “Red and Blue” to discuss the constitutional ramifications of the inquiry. Source

Viacom and CBS Corp. are again joining forces to bolster their positions in a rapidly changing industry that’s pushing other media companies to bulk up. The two first merged in 1999 and broke apart in 2005. Now, they are ViacomCBS, with a collection of cable channels, broadcast networks and film and publishing divisions. Source

President Trump on Wednesday canceled a news conference and left the NATO summit early after a hot mic caught other world leaders appearing to laugh at his expense. White House correspondent Ben Tracy has the story from London and State Department reporter Christina Ruffini joins CBSN in New York to break down the other big foreign policy stories of the day. Source

Olivia Jade Giannulli, the daughter of actress Lori Loughlin and fashion designer Mossimo Giannulli, posted her first YouTube video since the arrest of her parents in the college admissions scandal. CBSN Los Angeles reports. Source

Cesar Emilio Peralta, an accused drug kingpin linked to the shooting of former Boston Red Sox great David Ortiz, was arrested Monday in Colombia. He had been wanted by the FBI since late 2018 for his decade of alleged drug trafficking in Latin America. Source

Critics called the comments a threat aimed at communities of color. Source

About 25 volunteers made 3,694 cookies in just one day to honor their late friend, who started the tradition 12 years ago Source