Why is red for Republicans and blue for Democrats?

Red is for Republicans and blue is for Democrats, an association that only became cemented during the 2000 election.

Red and blue states: dichotomized maps mislead and reduce

Red and Blue States in the USA Definition & List - Lesson

Democrats Becoming More Liberal and Cohesive as a Party; GOP More

Quora Question: Why are Republicans Red and Democrats Blue?

When Republicans Were Blue and Democrats Were Red

Democrats vs. Republicans is Not Blue vs. Red: The Role of Color

Swing states: Arizona – A red state turning blue? - CGTN

Red Map, Blue Map The National Endowment for the Humanities

50 Years of Electoral College Maps: How the U.S. Turned Red and

CREST Network, Author at CREST Real Estate Network

Here's how hard the Republican wave struck Democratic Broward

なぜアメリカでは「共和党が赤、民主党が青」で分けられているのか？ - GIGAZINE

Red vs. Blue States: Competing Visions for 2022 and 2024