♪ nothing is everything ask your dermatologist about skyrizi. ♪ welcome back. we've been following the news of a second whistle-blower coming forward in trump's ukraine saga. and i want to bring in 2020 presidential candidate. senator, thanks for being with us. >> thanks for having me. >> first, your reaction to this news of a second whistle-blower. >> i don't find it surprising. i think there are a lot of people that witnessed this kind of behavior and we're only at the beginning of knowing the depth and the breadth of it. remember this is now an allegation that it's not only implicated by the president by