Is a Two-Party System Guaranteed?

Picked one by one from a mixed channel. Transcript check: Explains the mechanics of first-past-the-post voting and its effect on the two-party system.. Channel rule: Include only videos whose main purpose is to explain a political, legal, economic or statistical institution or concept (e.g., gerrymandering, the Electoral College, the federal budget, PACs, margin of error, trade wars, write-in candidates, why the drinking or tobacco age is 21); exclude pop-culture-hooked, predictive or opinion, and personal or channel-news videos.