Ending Roe probably was being held back to use as an emergency lever to keep Republicans from winning a supermajority.

BUT it may backfire.

Reason is the country is actually almost exactly 50/50 split on abortion, but conservatives say it's 60% pro-choice, centrists says 70%, democrats say 80% pro-choice, and far left says 90% of the country are pro-choice (or thereabouts).

This is the power of media, but like with "Don't Slay Gay" the unintended effect is they've convinced themselves that the country agrees with them when it doesn't. They make it an issue and it doesn't turn out how they imagined it would.