6 AM ET: Gulf Coast 'tipping point,' North Korea arms deal, Jill Biden has Covid & more

Experts warn some communities on the Gulf Coast are at a tipping point because of climate change. An arms deal could be in the works between North Korea and Russia. First Lady Jill Biden has been diagnosed with Covid-19. The impeachment trial of Texas Attorney General Ken Paxton starts today. Plus, people finally leave the Burning Man festival in Nevada.

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