Senator Mark Warner, D-Va., discusses the latest on the investigation of Trumps potential collusion with Russia. » Subscribe to MSNBC: .
Jim Burr and mark Warner update Press of the progress of the Senate Intelligence Committee investigation into Trump / Russia influence during 2016 Election .
Sen. Mark Warner, D-Va., sent a letter to DHS asking for more information on Russias attempt to hack the 2016 elections. Sen. Warner joins Morning Joe to .
Sen. Mark Warner (D., Va.) admitted on Sunday that the Obama administration choked in its handling of Russian meddling in the 2016 presidential election.