Lewandowski, Dems Clash As Impeachment Hearing Goes Off The Rails; Spicy Salsa Aftermath; Voter Enthusiasm Rising For Warren

New Poll Points To Changing Democratic Race; Democrats Take Senate Floor On Gun Legislation, Demand Action; Lewandowski, Dems Clash As Impeachment Hearing Goes Off The Rails; Lewandoski Refuses To Talk WH Discussions Despite Subpoena; Pres. Trump Praises Ex-Campaign Manager As Lewandoski Stonewalls Democrats On Orders From The White House; Democrats Take Senate Floor On Gun Legislation, Demand Action; GOP Source On Dems Push For Gun Legislation: There Isn't Widespread Support, Don't See It Changing; Source: "High Probability" Saudi Attack Launched From Iranian Base Near Iraq; Spicer's Twice After His Spicy Salsa; Sean Spicer Appears To Invoke Christ To Get "Dancing With The Stars" Votes; New Poll Points To Changing Democratic Race; Biden, Warren Show Biggest Gaines In New NBC News/WSJ Poll; New Poll: Voter Enthusiasm Rising For Warren

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