Regarding Reagan's position on abortions-on-demand: In 1967, then-Gov. Ronald Reagan signed a bill that virtually decriminalized abortion. It permitted abortions during the first 20 weeks of pregnancy. This was six years before Roe v. Wade. Later on in his political career Reagan became much more pro-life. But there is no question that he chose not to veto a law which subsequently resulted in a large upsurge of abortions in California, and which likely helped pave the way for Roe v. Wade.
Regarding Reagan's position on open borders: In announcing his presidential candidacy in Nov. 1979, he had proposed a “North American accord” in which commerce & people would move freely across the borders of Canada & Mexico.
Regarding Reagan's position on drug legalization: In August 1979, Reagan dedicated one [radio] program to marijuana. While he warned of the many health risks, he did say, "If adults want to take such chances [using marijuana], that is their business." When he became President, Reagan turned into an extremely hard-line drug warrior.
I hope these quotes help your recollection. Losing one's memory is a terrible thing.