After federal immigration enforcement agents fatally shot a second person in Minneapolis, stirring mass protests, U.S. Sen. Bill Cassidy called the events “incredibly disturbing.”

The president is backing a primary challenge against the Louisiana senator, which may doom his political career.

Fresh off an endorsement from President Donald Trump, Rep. Julia Letlow of Louisiana is launching a U.S. Senate bid against fellow Republican and second-term Sen.

It turns out voting to confirm anti-vaxxer RFK Jr. as President Trump's health secretary didn't protect Sen. Bill Cassidy (R-La.) from a primary threat.

President Donald Trump encouraged Rep.

Louisiana state Rep. Julie Emerson (R) announced Thursday she was dropping her primary challenge against Sen. Bill Cassidy (R-La.) in light of Trump-backed Rep. Julia Letlow’s (R-La.) recent entrance into the race.

Despite Trump's endorsement of Julia Letlow, incumbent Louisiana Senator Bill Cassidy remains confident he will be re-elected.

President Trump pledged to back GOP Rep. Julia Letlow if she launches a bid in the Louisiana Senate race.

Cassidy’s call for a joint investigation comes amid deep tensions between state and federal officials in Minnesota. State officials have accused immigration agents of reckless tactics; Trump administration leaders have said state officials are refusing to cooperate and are inflaming anger at law enforcement.

Trump has long had a tenuous relationship with Cassidy.

Rep. Julia Letlow announced Tuesday morning that she is running for Senate, after earning President Donald Trump's endorsement over the weekend for a Republican primary challenge against Sen.

Sen. Bill Cassidy (R-La.) on Saturday expressed concern about Immigration and Customs Enforcement (ICE) and the Department of Homeland Security’s (DHS) reputation following another fatal shooting in Minnesota.