John Bolton says he is prepared to testify in Senate trial if subpoenaed
By Jeremy Herb, Manu Raju & Kylie Atwood
Rudy Giuliani says he's willing to testify, give 'demonstrations' at Trump impeachment trial
By Libby Cathey & Shannon Crawford
Bolton Is Willing to Testify in Trump Impeachment Trial, Raising Pressure for Witnesses (Published 2020)
By Nicholas Fandos & Michael S. Schmidt
Top Democratic leaders kept in dark about Soleimani attack
By Ted Barrett & Manu Raju