Again, because I like you, I will explain one more time.
Nominating a person for judge on SCOTUS or Federal court does NOT get the president to decide on any issue. The president depends on how his nominee will rule. Some Reagan appointees to SCOTUS turned out to be more liberal than conservative. Justice Roberts was nominated by pro-life president Bush and voted in favor of Obamacare.
No President can change abortion laws all by himself. Only the SCOTUS can change it in the future. President has the constitutional authority to nominate judges, but not changing any law unilaterally. Therefore no candidate should say “Roe Vs Wade will be gone if I am elected”. But he can always say, I will nominate justices who favor right to life, and I hope those justices will rule in sync with my wish. But I can not dictate what the outcome will be.
Listen, I understand exactly what you are saying. I know how the process works. However, Trump has a list of SCOTUS picks who have been praised by pro-life groups. He is picking people he knows are pro-life, so of course they are going to be opposed to Roe vs. Wade. If they are opposed, they will overturn it if possible. I feel like we are picking at semantics here. The bottom line is that if someone is a passionate abortion supporter who cares about Roe vs. Wade being maintained, they’ll vote Hillary.