Key Facts Trump said Republicans will “find out” whether John Thune should remain Senate majority leader. Asked Wednesday whether Thune, R-S.D., was still the right person to lead Senate Republicans, Trump declined to offer an endorsement. Trump has also demanded that the Senate remain in Washington rather than leave for its August recess until the legislation is approved. The GOP holds a 53–47 Senate majority, leaving Republicans short of the votes required under existing Senate rules. Trump believes the Senate has enough support to advance the measure, while Thune has reportedly maintained that several Republican senators remain opposed.