NAPLES (CBSMiami/AP) – Former State Legislator Paige Kreegel says he will run in the Republican primary against U.S. Rep Trey Radel, the congressman who pleaded guilty to cocaine possession.

Kreegal, on Tuesday, plans to formally announce that he will challenge Radel.

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The Naples Daily News reports that Kreegel got just under 18 percent of the vote in the 2012 GOP primary, which Radel won.

Kreegel previously served two four-year terms in the state House. Several other candidates have filed papers indicating they will run for Radel’s seat.

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Related: Rep. Radel Ready To Get Back To Congress

Radel pleaded guilty in November to a misdemeanor charge of cocaine possession and was sentenced to a year of probation. He recently underwent treatment at a drug and alcohol rehabilitation center.

The House Ethics Committee is investigating his conduct.

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