In 2004, Governor Howard Dean was the Dem's frontrunner. He led the pack by 15 points.

He dropped out a little more than a month later.

In 2008, Clinton had her first stint as frontrunner; she led by 19.2 points

Governor Rudy Giuliani topped the GOP on the first day of '08 by 3.5 points.

He quit 29 days later.

In 2012, former Speaker of the House Newt Gingrich was the frontrunner. He led by 2.2 points.

Gingrich left the race on May 2nd.

This video includes images from Getty Images. 

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Former Fulton County election worker Ruby Freeman talks to her daughter, Wandrea ArShaye "Shaye" Moss, a former Georgia election worker, after she testified before the U.S. House Select Committee at its fourth hearing on its Jan. 6 investigation on Capitol Hill in Washington, D.C., on Tuesday, June 21, 2022. (Yuri Gripas/Abaca Press/TNS)

Credit: TNS