John Doe investigation: Judge tosses out lawsuit by former Walker aide

MADISON — A federal judge has rejected a lawsuit by a former aide to Gov. Scott Walker who accused prosecutors of overstepping their authority.

Judge Lynn Adelman's ruling came in a case rooted in a so-called John Doe investigation of alleged misconduct in Walker's campaign. Six Walker aides or associates were convicted in the case, though Walker himself was never charged.

Cindy Archer, a former top Walker aide whose Madison home was raided in 2011, had accused authorities of heavy-handed tactics in the raid and of a campaign of harassment of conservatives. She was later granted immunity and wasn't charged with a crime.

In tossing out Archer's lawsuit, Adelman wrote that prosecutors are generally protected from such legal action so they can carry out their work without fear of unwarranted lawsuits.