New impeachment witness testimony just released less than 48 hours before public hearings begin; More transcripts released: State department special adviser for Ukraine and foreign service officer

Witness: Key diplomat engaged in effort to see if Ukraine could make a statement to get aid freeze lifted; Now: Court hearing over Mulvaney's request to join lawsuit fighting House subpoena power; Witness: Ukraine was aware security aid was frozen as of August before it was publicly reported; Ahead of CNN's Town Hall in Iowa, poll shows Biden leading tight race in New Hampshire; New York Times: Former Massachusetts Governor Deval Patrick considering White House bid; New book reveals Trump's White House chaos, backstabbing; Wolf one-on-one with Nikki Haley this Thursday

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