Thomas Gordon won the New Castle County Executive Democratic primary election Sept. 11 receiving nearly16,000 votes in the four-way race.
Gordon, who was County Executive from 1997 to 2004, beat incumbent Paul G. Clark by about 4,400 votes, according to results tallied by the Department of Elections Tuesday night.
Gordon received nearly 46 percent of votes and Clark 33 percent.
"We did our best, we didn't compromise our principals, and in the end I guess it wasn't what the people wanted," Clark said Tuesday night.
Gordon will face Republican Mark Blake in the November General Elections for a chance to get his old position back.
The primary election was a four-way competition between Clark, Gordon, Bill Shahan and Jonathan Husband.
Shahan and Husband, who both were seeking office for the first time, each received between 10 and 11 percent of the votes.
A fifth Democrat, Rich Krett, was forced to withdraw from the election in March because County attorneys said that he violated the Hatch Act.
Krett chose resign his candidacy and to continue serving the County as Assistant Chief of the New Castle County Paramedics.
"I think the voters have spoken and clearly indicated that they want a change in the way New Castle County government is run," Krett said Tuesday night.
More than 35,300 New Castle County Democrats turned out Tuesday to cast their ballot for the Executive race.
Clark will remain in his current role until January, but says that he thinks he will do something other than politics once his term is up.