Today is Tuesday, Sept. 23, the 266th day of 2025. Today in history:On Sept. 23, 1952, Sen. Richard M. Nixon, R-Calif., salvaged his vice presidential nomination by appearing on television from Los Angeles to refute allegations of improper campaign fundraising in what became known as the “Checkers” speech for its reference to his family’s cocker spaniel. In 1806, the Lewis and Clark expedition returned to St. Louis, more than two years after setting out for the Pacific Northwest. In 2018, capping a comeback from four back surgeries, Tiger Woods won the Tour Championship in Atlanta, the 80th victory of his PGA Tour career and his first in more than five years. In 2022, Roger Federer played his final professional match after an illustrious career that included 20 Grand Slam titles.