The ongoing government shutdown, now in its 20th day, highlights the increasing political polarization in the United States.
A government shutdown typically lasts as long as one party believes it can gain an advantage from it, by winning the blame game and turning public anger against their opponents, in hopes of boosting their chances in the next election.
Ending a shutdown requires some members of the opposing party to compromise and break ranks, a decision influenced by the opinions of independent or swing voters.
Agreement to end a shutdown requires at least a few members of the party that opposes a compromise to break ranks.
Author's summary: Government shutdowns reflect growing US political polarization.