Why do you think Mr Trump was given the opportunity to appoint who he did to the Supreme Court?
It's because of the Federalist Society and their agenda to cancel Roe vs Wade and advance a conservative position.
As always, you are two steps behind the play.
"what lie, that the Republicans were going to totally ban abortion"
Ohhh they wanted to(see Texas) but they realized it's massively unpopular and would lose them votes. Hence Mr Trump and Kari Lake, two of the biggest voices are now saying, yeah not so much, regards a complete ban.
(For future reference, something isn't leaked if you have 4 years of advance notice.)
