- Louisiana’s Letlow prepares Senate bid after Trump endorsement Politico
- Trump endorses possible primary challenger to Sen. Bill Cassidy in Louisiana CBS News
- Trump Backs a Potential Primary Challenger to Bill Cassidy, a G.O.P. Senator The New York Times
- Trump exacts revenge on Bill Cassidy by backing possible Republican challenger The Guardian
- Trump urges lawmaker to challenge Sen. Bill Cassidy in GOP primary The Washington Post