Erin Burnett Outfront

First public hearing further ties Trump to Ukraine pressure, Top diplomat in Ukraine testifies his aide heard Trump on phone asking for update on "Investigations", Taylor aide overheard Trump ask about Ukraine investigations, Trump: "I know nothing about that", Top diplomat in Ukraine details "Unusual" and "Alarming" U.S. policy toward Ukraine, Top diplomat in Ukraine: Trump wanted Ukraine President in a "Public box" by committing to investigations, Top diplomat in Ukraine says he sent cable to Pompeo about Ukraine aid concerns; Never heard back, Sources: White House caught off guard by top diplomats testimony, Trump says he's "Too busy" to watch impeachment hearing despite posting 30+ tweets on testimony, Source: White House inundated GOP members with so many emails, some replied "Stop spamming me", New questions surface for European Union Ambassador about Trump call after damning testimony from top Ukraine diplomat, As GOP hammers wi