Acting U.S. Ambassador to Ukraine Bill Taylor is testifying in the House impeachment inquiry's first public hearing.
Driving the news: Taylor's opening statement included a new revelation that he said he learned from a staffer last Friday. The staffer overheard EU Ambassador Gordon Sondland discussing "investigations" in a phone call with Trump on July 26. When he asked Sondland what Trump thought of Ukraine, "Ambassador Sondland responded that President Trump cares more about the investigations of Biden, which Giuliani was pressing for," Taylor said.