If abortion is an issue for you during federal elections, you are pretty much an idiot. Congress can make no law for or against abortion, that right is entirely at the state level. If you see a politician that promises to codify some law on abortion, they are lying to you. At this point, if you want abortion legalized of if you want it banned by the federal government , you must get an amendment passed. And we all know that democrats will never find the support for an amendment, and we know that democrats are terrified of a constitutional convention (the other option). But they know that you the democratic voter are incredibly stupid, and will vote for democrats while they do absolutely nothing to achieve your goal.