testify this week? >> you're definitely going to want to zero in, i believe on tuesday, an ambassador named bill taylor. he is currently the top diplomat in ukraine. he had kagts with trucontacts w appoi appointees, other people to manipulate ukraine in these investigations. he had told those other people, those diplomats, that it would be crazy to do so, so hold up the aid. so they've already read his text messages. they're going to want to ask him directly what was happening and what was he thinking. and then additionally, they're going to talk to a guy by the name of tim morrison who is a national security counsel official who was on the phone alongside the president of the united states, donald trump, when donald trump told zelensky, the ukranian leader, two things.