120th Congress: Who will run for Senate Republican leader?

Before Jan 1, 2027 If X has announced that they will run for Senate Republican leader for the 120th Congress in 2026 after Issuance and before Jan 1, 2027, including running for the nomination of any political party to contest that office, then the market resolves to Yes. The person must publicly announce their campaign for it to be reported by a Source Agency. Merely filing campaign paperwork with the Federal Election Commission or similar entity is insufficient without a public announcement.