Many religious congregations are ramping up their efforts to assist as many refugees as possible before President-elect Donald Trump takes office on Jan. 20.

Every time a presidential transition takes place, a familiar phrase crops up: "the U.S. has one president at a time." But Trump is already declaring foreign policy plans that differ from Biden's.

Gi-Wook Shin, director of the Shorenstein Asia-Pacific Research Center, talks with NPR's Mary Louise Kelly about democracy in South Korea following the president's brief declaration of martial law.