MADISON, Wis. — A super PAC supporting Kevin Nicholson in the Republican primary for U.S. Senate is launching nearly $1 million in television advertising for the final days of the campaign.

Solutions for Wisconsin is backed by Illinois businessman Richard Uihlein, who have $3.5 million to the group earlier this year. It's already spent about $323,000 on advertising for Nicholson.

He faces state Sen. Leah Vukmir in Tuesday's primary.

Nicholson is running as an outsider while Vukmir has the endorsement of the Wisconsin Republican Party.

The new ad is expected to be the same one Solutions for Wisconsin unveiled earlier this week attacking Vukmir for comments she made in 2016 saying President Donald Trump was "offensive to everyone."

The ad says, "If you think you can trust Vukmir to support President Trump, the joke's on you."