But in a lengthy video recorded on Monday, Mohler, who is president of the Southern Baptist Theological Seminary in Louisville, said he plans to vote for Trump in 2020 and for the Republican presidential candidates for the rest of his life, unless the party changes its platform.

Mohler argued in the video that conservative Christians should vote based on a party’s view on abortion, Supreme Court nominees and protecting religious liberty. He said former vice president Joe Biden, the presumptive Democratic nominee, had character issues for reversing his position on the Hyde Amendment, a provision barring the use of federal funds for abortion.

In an interview on Wednesday, Mohler said his opinion on Trump began to change during the 2017 Supreme Court confirmation hearings for Neil M. Gorsuch, who then was an appeals court judge. That’s when Mohler said he began to believe that Trump would do what he had promised during his campaign — to nominate judges who would overturn Roe v. Wade, the landmark 1973 abortion rights decision.