If the Republican Party had wanted to - abortion would be illegal. I think they would rather have it as a wedge issue than to actually do something about it. As long as you have people who vote for us (Republican) solely for the reason that we are Pro-Life, they will never have an incentive to act.
Controlling both houses of Congress and the White House won't get you a bill that will criminalize abortion.
There are only two means to achieve your end:
1. Constitutional amendment -- requiring a 2/3 maority in Congress plus the assent of 38 state legislatures.
2. A clear pro-life majority on the Supreme Court.
As it was, every pro-life vacancy on the Court was replaced with a pro-life justice. But there were no pro-abortion vacancies.