When Ronald Reagan was in is first months as governor, some adviser told him to sign a law. Unfortunately, he did sign it, and only learned about this issue later. But as soon as he learned about it, he was always 100% pro-life.
In fact, he wrote a book in 1983, called Abortion and the Conscience of the Nation, and he talked about signing that bill, which was always the ONLY mistake he ever mentioned in his political career.
He spoke about abortion at the 1986 State of the Union address, which I don't think any president has done since. You are being deceptive, he didn't make any secret of what happened, but he was by far the most pro-life president we've ever had.
When Trump was going to run Reform in 2000, he was strongly pro-choice.