Donald J. Trump broke his silence on Thursday about the Supreme Court’s decision to block parts of a Texas law restricting abortion access, promising that such outcomes would be different if he was elected president.

In an interview with Mike Gallagher, a talk radio host, Mr. Trump said that the ruling was another reason skeptical conservatives should back his candidacy. The next president is expected to appoint at least one Supreme Court justice and maybe more.

“Even if you dislike Donald Trump, I’m going to put great conservative justices on,” Mr. Trump said.

He added: “If Scalia was living or Scalia was replaced by me, you wouldn’t have had that,” Mr. Trump said of the Texas decision. “It would have been the opposite.”