MADISON, Wis. (AP) — Republican congressional candidate Tom Tiffany tosses a shovel-full of cow manure to demonstrate his pledge to work closely with President Donald Trump to “clean out the three-ring circus in Washington” in his first television ad of the special election released Friday. Tiffany, a state senator from Hazelhurst, also touts his endorsements by retired Rep. Sean Duffy and former Gov. Scott Walker in the spot that features Tiffany in work clothes in a dairy barn. It’s scheduled to air in northern Wisconsin’s 7th Congressional District starting Sunday. Tiffany faces Jason Church in the Feb. 18 primary. Democrats Tricia Zunker and Lawrence Dale are also running. The special election is to replace Duffy, who retired in September. Both Tiffany and Church have been running as staunch supporters of Trump in the congressional district the president won by 20 points in 2016. While Tiffany, 62, notes in the ad that he grew up on a dairy farm, but he ran an excursion boat business on the Willow Flowage where he lives for more than 20 years. He’s been in the state Legislature since 2011.