absolutely nothing to do with biden. >> still at the heart of the impeachment inquiry which brought another dramatic day on capitol hill, the ambassador to the european union, gordon sondland in the hot seat. >>y y-was it important to show up today? >> it is always important to show up when congress calls. >> are you here to sal skrvage replication? >> i don't have a replication to salvage. >> it is said that trump outsourced to rudy giuliani, and sondland testified we were disappointed by the president's direction that we involve mr. giuliani. >> was that a shadow foreign policy? >> that is a term you're using. that's a pejorative, a shadow policy here. >> meanwhile, energy secretary rick perry told president trump thursday, he intends to resign, a move that has been anticipated for weeks. perry is facing a friday deadline, to comply with a subpoena from house democrats. >> thanks to nbc's kirsten welker for that. and president trump announced yesterday that energy