Donald Trump, Jr. is set to release a fundraising appeal Friday evening expressing his support for Tshibaka, the former state commissioner of administration who is challenging Republican Sen. Lisa Murkowski. It comes just days after Palin, who rose to national prominence as the GOP’s 2008 vice presidential nominee, was quoted as saying that “If God wants me to” run for Senate, “I will.”

The former president and his son have endorsed Tshibaka over Murkowski, a Trump critic who voted in January to remove him from office over his role in the Capitol riot. Neither Trump nor his son have spoken out against Palin, and a person close to the younger Trump said that he and his father had warm feelings toward the former Alaska governor and that the appeal was in the works prior to Palin floating her candidacy.

But a Palin bid could potentially complicate Trump’s push to unseat Murkowski by dividing the votes of those running against her.