House panel issues subpoenas for Flynn, others; Comey to testify to Senate committee WWAY News, May 31, 2017
Sen. Burr corrects earlier statement, says Flynn hasn't responded to subpoena Associated Press, May 18, 2017
Trump, national security adviser defend sharing information with Russians Marissa Yoder, May 16, 2017
Yates testifies about Flynn concerns as Congress investigates Russian interference in 2016 election Associated Press, May 8, 2017
