Abortion has been a political issue since the flawed* Roe decision was made. It comes up every 2 years and will continue to come up.
It's a weapon, and yes, it affected the House and Senate in 2022.
Congress could codify it and has refused.
It's been a political issue, but as medina points out it was an issue that single-issue abortion voters might decide their vote on, but literally everyone else largely voted based more on their other political beliefs because as long as Roe was in force, your vote didn't really
affect the availability of abortion. And while the right was thumping their chests about how they'd get Roe overturned, I think a lot of the electorate didn't buy it--which is why it was such a huge shocking case to so many when it actually happened.
However, I still don't understand how the left weaponized it. Even if you consider every political issue a weapon, it seems to be bipartisan. Republican state-level lawmakers are pushing for heavy abortion restrictions in their legislatures, and then Democrats get it put on ballots for the voters to decide. Both sides are battling it out hard. I don't see how either side can be singled out for "weaponizing" the issue?
Abortion has been a rock around Republican electoral necks ever since Dobbs. I'll take a crack at it:
The other side of this coin is that so long as Roe existed, Republicans didn't lose too many votes for their Pro-Life position because so long as Roe was in place, people could reason that it didn't matter. Once that went away it hurt Republicans three ways:
I've actually made the argument [elsewhere] that abortion was a virtue signaling issue for a lot of Republican women. They could be the most vociferous pro-life advocates publicly, but with the knowledge that if they [or their daughters] ever needed an abortion, it was available, due to Roe.
Once Roe was overturned, they realized that availability of abortion was actually in jeopardy. And what we see at the ballot box is that even in Republican states like Kansas, keeping availability legal won resoundingly (60/40) at the ballot box. It did this DESPITE polling to lose 43/47, in a state which Trump carried 56/42. How to explain that??
My guess is that there were a bunch of Republican women arguing publicly that they were going to vote pro-life, that were telling their husbands and fathers and everyone else that they were going to vote pro-life, and then in the secrecy of the ballot box said "nope". Because they realized that when it REALLY came down to it, if they [or their daughters/granddaughters] needed an abortion, they wanted it to remain available.