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    'I must confess, I went rogue': Senate chaplain calls on lawmakers to do more

    07:39
  • How AR-15 bullets impact the human body

    04:44
  • Sheryl Crow: Moms and dads in Tennessee want sensible legislation

    12:31
  • Protesters rally for gun reform at Tennessee state capitol after Nashville shooting

    02:10
  • Red flag laws can help save lives, says former U.S. attorney

    11:10
  • Speaker McCarthy refuses to answer questions about mass shooting

    00:50
  • Joy Reid: Republicans like to say AR-15 is not weapon of war but it absolutely is

    10:59
  • Transgender activist slams GOP for ‘trying to weaponize’ Nashville shooting ‘for the ballot box’

    08:20
  • Joe: Republicans are so worried about drag shows, but they're alright with AR-15s all over

    10:47
  • Laws won't prevent all deaths, but the job is to mitigate, says House member

    09:37
  • Rep. Torres: 'Outrageous' that gun violence is the price to pay for freedom

    03:39
  • Anand Giridharadas: We need action from Democrats on gun reform

    11:32
  • John Heilemann: What's the body count on Critical Race Theory?

    07:52
  • Rep. McCarthy ignores question about Nashville school shooting

    01:34
  • Joe: This is a deliberate choice by the gun lobby to whip people into a frenzy

    08:23
  • Opponents of gun violence step up pressure on legislators cowed by gun lobby

    03:59
  • The Last Thing: “Move beyond thoughts and prayers”

    02:18
  • Biden urges Congress to pass an assault weapons ban

    08:29
  • Lawrence: Senate Chaplain tells GOP 'thoughts and prayers' aren't good enough

    12:58
  • Nancy Pelosi on assault weapons ban: We need 60 GOP votes in Senate to save lives

    09:49

Lawrence: ‘Police fear the AR-15’

15:17

MSNBC’s Lawrence O’Donnell explains why the Republican solution to arm teachers against mass shooters would never work after newly released surveillance video from inside Robb Elementary School shows dozens of highly trained, heavily armed officers too scared to confront the gunman with an AR-15 for 77 minutes.