They went nuclear.
Facing significant Democratic opposition, Republicans on Thursday enacted the "nuclear option" to clear the way to confirm Neil Gorsuch as President Donald Trump's nominee to the Supreme Court. That confirmation vote is expected on Friday.
Here we take a look at the nuclear option — what it is, how it works, its history and where the name comes from.
More from NBC News:
Republicans use 'nuclear option' to clear the way for Gorsuch confirmation
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McCain: Anyone labeling nuclear option beneficial is a 'stupid idiot'