The final debate before the Iowa caucus was nothing short of entertaining. As always, Twitter users were eager to add to the conversation.

Ted Cruz opened the debate by saying he's a manic. Yes, a maniac.

Marco Rubio made a comment about Sweden.

And much more.

Scroll through quotes, other memorable moments and highlights below. For a full recap of the Republican debate, check out AJC's Political Insider blog.

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Waymo autonomous vehicles operate across 65 square miles inside I-285 and have been involved in six incidents with Atlanta Public School buses since May. Waymo issued a recall because of their cars briefly stopping or slowing down before continuing forward while a bus was stopped and flashing its lights. (Courtesy of Atlanta Public Schools)

Credit: Courtesy of Atlanta Public Schools