Former Major League Baseball MVP Steve Garvey is advancing to a November election to fill the U.S. Senate seat held for three decades by the late Dianne Feinstein, a rare opportunity for the GOP to compete in a marquee statewide race in a Democratic stronghold.

Garvey, a 10-time All-Star who played for the Los Angeles Dodgers and San Diego Padres, will face Democratic Rep. Adam Schiff.

“Let’s celebrate,” Garvey told his supporters Tuesday night. “Welcome to the California comeback.”

“What you all are feeling tonight is what it’s like to hit a walk-off home run. Kind of like San Diego in 1984.”

Garvey famously hit a walk-off home run off Lee Smith in Game 4 to keep the Padres alive in the 1984 National League Championship Series against the Chicago Cubs. San Diego then won Game 5, and Garvey was named series MVP.