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    Trump holds campaign rally in the Bronx

    03:31
  • Streaming wars hits the NBA with possible deal with NBC, Amazon

    06:22
  • Tesla owner claims self-driving mode didn't detect a moving train ahead

    04:32
  • Social media influencers promote anti-sunscreen movement online

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  • Video shows stage collapsing at campaign rally in Mexico

    02:31
  • Cassie speaks out for first time since release of Diddy assault video

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    02:59
  • Jennifer Lopez shuts down Ben Affleck question while promoting movie

    04:18
  • NCAA votes to approve settlement that could change college sports

    05:18
  • Supreme Court rules in favor of GOP in South Carolina redistricting case

    05:29
  • Honoring Cynthia McFadden's NBC career on the eve of her retirement

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  • Tesla owner says his car's 'self-driving' technology didn't detect moving train

    02:35
  • Hundreds protest at UCLA after chancellor testifies before House

    02:05
  • George Floyd's family fighting against reversal of police reform measures

    05:11
  • Ty Cobb calls unsealed filings in classified docs case ‘damning’ for Trump

    05:31
  • NBC News unveils Home Buyer Index that measures the market

    02:26
  • The Deciders: How RFK Jr. could impact the presidential election in battleground Arizona

    06:40
  • Meet Holly Connor, a blind teen with autism inspiring others through music

    03:19
  • Trump team moves to shift GOP platform on abortion as voters consider ballot measures

    05:45
  • The Deciders: Arizona voters weigh in on potential abortion ballot measure

    01:51

New study shows mixing and matching vaccine boosters is effective

03:00

According to a National Institutes of Health study, mixing and matches vaccines from Moderna and Pfizer-BioNTech appear to be safe and effective. NBC News' Dr. John Torres speaks about the study and whether we could see widespread vaccine mixing.