Sunday, December 20: With one month left in office, Trump's focus is on overturning election results

In a heated Oval Office meeting Friday evening, President Trump discussed declaring martial law to overturn the election. The ideas were shot down by senior aides, but it's clear the President is still unwilling to accept last month's results.

Plus, Democratic Congresswoman Ayanna Pressley offers her take on the ongoing Congressional coronavirus economic relief bill negotiations and details what she hopes to see included in the final text.

And, a second coronavirus vaccine has been approved and will be available as soon as Monday. But doctors urge caution around holiday travel as the U.S. breaks records on cases, hospitalizations and deaths in the last week.

On today's show: Brown University School of Public Health Dean Dr. Ashish Shah and Dr. Megan Ranney of Brown University; Washington Post's Seung Min Kim and Jonathan Martin of the New York Times; Democratic Congresswoman Ayanna Pressley of Massachusetts; Obama Administration Economic Advisor Austan Goolsbee and Trump Administration Economic Advisor Kevin Hassett.

To learn more about how CNN protects listener privacy, visit cnn.com/privacy