I encourage you to advise your deacon that to describe Donald Trump as pro-life is to make a mockery of the term "pro-life" and to reduce it to meaninglessness.  He's a racist; a fascist; a nationalist; a misogynist; each of those things is inconsistent with being pro-life.  Moreover, he's demonstrated no understanding of the history or politics of abortion, and no interest in the issue.  And on top of all that, he even mocks handicapped persons while running for president.  

The deacon was engaged in a hypocritical effort to justify a vote for a racist, fascist, know-nothing blowhard who lacks even the minimum qualifications for any public office.  I hope people in the congregation walked out; withheld their contributions; and complained to the pastor and the bishop.  This behavior was abusive and the man should lose his faculty to preach until he can be retrained.  Please feel free to print this post and hand it to him.