The nation’s most prominent anti-abortion group has been leading the campaign to protect the Senate’s legislative filibuster, in order to ensure that Democrats don’t pass voting rights protections.

The right-wingers promoting the filibuster have been fully transparent about their goal: they want to block a federal voting rights law so they can elect more anti-choice politicians and to protect the Supreme Court’s conservative supermajority that’s threatening abortion rights. It’s one more piece of evidence that defending the filibuster isn’t about preserving a rarefied legislative tradition — it’s all about rigging the game to maximize conservatives’ power.

So far, some Democrats seem content with allowing conservatives to win the argument and are refusing to end the filibuster — while other party lawmakers are considering weaker rule changes that might not do anything to help Democrats actually pass a voting rights bill.