He's a former state senate minority leader.
Jennifer Carnahan was forced out as party chair amid a cloud of allegations.
Jim Newberger had been aiming to replace the recently-resigned Jennifer Carnahan.
The probe appears to be related to his office's finances.
The lawsuit was filed on behalf of a teenager and her parents.
Jennifer Carnahan resigned over an associate's sex trafficking indictment.
The outgoing chairwoman was allowed to break a tie granting her the deal.
In a statement, she blamed 'mob mentality' for her ouster.
"She will never let the truth see the light of day, because in her narcissistic mind, it would ruin her brand," Andy Aplikowski said.
They say any leaders who failed in their legal or moral responsibilities should resign or be fired.
An increasing number of current and former party executives are calling for the embattled chairwoman to step down.
The Minnesota GOP chairwoman spoke to two radio stations on Tuesday.
Meanwhile, Carnahan has challenged the GOP executive board to call a confidence vote.
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The statement revealed that Carnahan had been aware of an allegation of sexual misconduct made against a GOP staffer for months.
She says that she's victim of "smears" after one of her close confidants, Anton Lazzaro, was indicted for child sex trafficking.
It's over her close connection to Anton Lazzaro, who's accused of child sex trafficking.
There have been calls from Republicans for Jennifer Carnahan to resign.
Some Minnesota Republicans have started distancing themselves from Anton Lazzaro, pledging to return donations from him.
Officials spoke of his work on environmental and civil rights issues, as well as their own personal stories with the former Vice President.
This will be her third term leading Minnesota Republicans.
Carnahan was first elected to the position in 2017.
Jennifer Carnahan is the latest Republican to allude to baseless allegations of voter fraud.
The event was a party update featuring chairwoman Jennifer Carnahan.