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    Russian jets flew over U.S. Syrian base nearly every day in March

    03:12
  • Tensions ramp up as North Korea test-launches multiple cruise missiles

    05:03
  • Federal government announces organ transplant system overhaul plans

    01:55
  • Artificial intelligence is rapidly developing, but how does it work? Experts explain.

    06:48
  • Stephen Smith’s death reopened as a homicide after renewed interest from Murdaugh trial

    01:46
  • AI ‘race to recklessness’ could have dire consequences, tech experts warn in new interview

    04:13
  • Giant whale smashes into boat, leaving group stranded in the middle of the ocean

    01:19
  • The Fed hikes interest rates by 0.25 percent

    01:39
  • High school student shoots two administrators in Denver, authorities say

    02:52
  • Small tornado touches down outside Los Angeles

    02:04
  • Creators, lawmakers oppose ban of TikTok at Capitol rally

    04:42
  • Artificial intelligence is rapidly developing, but how does it work? Experts explain. (Part 2)

    02:50
  • Artificial intelligence is rapidly developing, but how does it work? Experts explain. (Part 1)

    03:58
  • Remembering NBC News’ Vaughn Ververs

    01:55
  • Sen. Baldwin calls for more security to ‘safeguard’ data ‘even when it's in U.S. hands’

    07:43
  • John Kasich: Trump is still ‘a long way from the nomination’

    07:07
  • Parallel parking fear stalls many from obtaining a driver's license

    02:11
  • Chuck Todd: Only thing that will keep Trump off the ballot in 2024 'might be the legal system'

    04:11
  • Tainted eyedrops linked to three deaths and extensive vision loss

    02:02
  • Federal Reserve raises interest rates by 0.25%

    01:22

Some polls show Romney lagging

01:24

CNBC's John Harwood weighs in on the state of Mitt Romney's presidential campaign.