Primaries and Caucuses

• Elon Musk Spends $10 Million to Help Nate Morris in Kentucky Senate Race - Elon Musk, the world’s richest person, backed Nate Morris, a Republican businessman, in the primary race to succeed Senator Mitch McConnell in Kentucky.
• Trump Backs a Potential Primary Challenger to Bill Cassidy, a G.O.P. Senator - The president urged Representative Julia Letlow of Louisiana to run against Mr. Cassidy, in a move that is likely to further complicate his relationship with Senate Republicans.
• Elise Stefanik Drops Out of N.Y. Governor’s Race and Will Leave Congress - Ms. Stefanik, a Republican congresswoman and staunch ally of President Trump, abruptly ended her bid to unseat Gov. Kathy Hochul and said she would not seek another House term.