Jim Oberweis' campaign rhetoric caused about two dozen Chicago area customers to cancel their home delivery subscriptions, according to the Chicago Tribune. Oberweis placed a close second in a messy Republican race by taking a hard-line against illegal immigration. Critics say the ads were insensitive to Illinois' sizable immigrant community.

"Illegal aliens are coming here to take American workers' jobs, drive down wages and take advantage of government benefits such as free health care, and you pay," Oberweis said in one of the spots. "How many? Ten thousand illegal aliens a day. Enough to fill Soldier Field every single week."

The newspaper quoted a suburban Chicago woman who says her family quit buying Oberweis milk because of the campaign. She also said she received a letter from the dairy minimizing its connection to the Senatorial candidate.

The company, which has grown exponentially in recent years, operates 32 gourmet ice cream parlor and dairy retail outlets in the area, and offers home delivery in several Illinois markets. Oberweis is not involved in daily operations of the dairy, but appeared in the its first-ever television ads last year, sparking criticism that he was skirting election rules by using the business as a campaign tool.