Noun
(idiomatic) In resolving a problem, the possible course of action that is considered the most extreme because of its collateral consequences.
(US politics) A procedure by which the United States Senate can decide any issue with a simple majority, rather than the usual supermajority.
Source: en.wiktionary.orgThis nuclear option is ultimately an example of the arrogance of power. Joe Biden
I have not taken a position on that nuclear option. My view is I'm not going to do anything until I come to that bridge. I'm not going to jump off the bridge until I come to it. Arlen Specter