Takeaways from a day that fundamentally changed the presidential race

President Joe Biden’s abrupt decision to bow out of the presidential race and endorse Vice President Kamala Harris to be the Democratic candidate against former President Donald Trump caused a political earthquake on Sunday. It also changes the contours of a presidential race — which most voters said they did not want to see — that has seemed rigidly set for more than a year.

Here are some takeaways from the historic day.

Since Biden's disastrous debate in June, the Democratic party has been in disarray. Drip by drip, high-level party officials reversed course and started to send signals that the president needed to step aside.