Senate Democrats essentially want to ban virtually all abortion regulations. I've argued that conservatives should focus on the 20 week plus abortion ban. Such bans are very strong in the polls right now, which make them good politics as well as good policy.
It's also fascinating that Democrats see this as winning strategy. Polls show a majority of Americans now identify as pro-life and as the Weekly Standard points out here, many of the measures they're going after are wildly popular. I can see wanting an Obamacare distraction, but this seems an odd choice.