Republican Steve Hilton, who is running for governor of California, said Thursday that he would appoint a Democrat to fill any vacancy in the U.S. Senate if he is elected governor. Hilton made the statement during an appearance on a podcast, where he discussed his campaign and his approach to governing California.

The pledge would apply if one of California’s two U.S. Senate seats became vacant during Hilton’s tenure as governor. California’s current senators are Democrats Alex Padilla and Adam Schiff, meaning Hilton would potentially be responsible for temporarily filling a seat held by a Democrat.

Hilton is facing Democratic candidate Xavier Becerra in the November 3 general election. The two advanced from California’s June top-two primary, in which the two candidates receiving the most votes move on to the general election regardless of party. Hilton finished second with about 24.6% of the vote, while Becerra finished first.

The Senate commitment came during Hilton’s interview on Pod Save America, a podcast hosted by Democratic political commentators. Hilton also discussed his relationship with President Donald Trump and California’s housing problems during the appearance.

Hilton, a former Fox News commentator who received Trump’s endorsement, has campaigned on reducing regulations, addressing California’s high cost of living and homelessness, and changing how the state government operates. He is seeking to become the first Republican elected governor of California since Arnold Schwarzenegger won reelection in 2006.

The November election will determine who succeeds Democratic Gov. Gavin Newsom, who is barred from seeking a third consecutive term.