The sudden death of U.S. Senator Lindsey Graham has created a critical vacancy that now threatens the Republican majority in the Senate.
Graham, a prominent Republican from South Carolina, died after a brief illness. His absence disrupts the current 53-47 Republican majority, shifting the balance of power ahead of the 2026 midterms.
South Carolina's governor will appoint an interim successor. A special Republican primary is scheduled for August 11, ahead of the November 3 general election.
Market prediction platforms reflect the new uncertainty, showing decreased confidence in Republican control of the Senate. The development increases the likelihood of Democrats gaining the seats needed to reclaim the majority.