Louisiana primary voters could boot a sitting U.S. senator for the first time in nearly 100 years. Backing the insurgency against Sen. Bill Cassidy is President Donald Trump. The pair have been at political odds since Cassidy voted to convict Trump in his second impeachment trial more than five years ago. Liz Landers looks into the tight, three-way race.Notice: Transcripts are machine and human generated and lightly edited for accuracy. They may contain errors.

Amna Nawaz:

Tomorrow, Louisiana primary voters could oust a sitting U.S. senator for the first time in nearly 100 years.Backing the insurgency against Senator Bill Cassidy is President Donald Trump. The pair have been at political odds since Cassidy voted to convict Trump in his second impeachment trial more than five years ago.Liz Landers looks into the tight three-way race likely to be decided by the president's popularity.

Liz Landers:

Days before a critical primary election, voters in Louisiana were tucking into steaming plates at a crawfish boil in Lafayette.