Taylor's aide, who was accompanying Sondland to meetings in Kiev with Ukrainian officials, could hear Trump asking Sondland about the investigations, Taylor testified.
Sondland "told President Trump that the Ukrainians were ready to move forward," Taylor said.
Taylor testified that his aide later asked Sondland what Trump thought of Ukraine.
"Ambassador Sondland responded that President Trump cares more about the investigations of Biden, which (Trump personal attorney Rudy) Giuliani was pressing for," Taylor said.
House Intelligence Chairman Adam Schiff, a California Democrat, asked Taylor if Sondland's statement meant that Trump cared more about the investigations "than he does about Ukraine?"