This year, Martin Luther King Day will also mark the re-inauguration of President Barack Obama. His first inauguration brought more than 2 million people to the National Mall four years ago; this year, the event is expected to attract hundreds of thousands. Tracy Campbell, a History professor and Co-Director of the Wendell H Ford Public Policy Research Center, joined us by phone to discuss American presidential inaugurations and how they have changed over time.
This podcast was produced by Cheyenne Hohman.
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