Wisconsin impeachment review panel includes former GOP speaker, conservative justice

David Prosser is one of three ex-Wisconsin Supreme Court justices tapped to investigate impeaching Janet Protasiewicz .

The Republican Assembly speaker has floated impeachment because of the Democratic Party money.

The other eight living former justices, six of whom are conservatives, have told the AP they have been picked.

The impeachment threat comes after the newly elected justice 's win this spring .

Prosser was accused by a liberal justice of attempting to choke her in 2011 .

He voted with the majority to shut down the investigation.

Vos says he's giving advice on whether or not someone ought to recuse and the criteria for impeachment.

Democrats say the impeachment review panel is a joke.