Two Madison women have been arrested for beating a state Senator last month.

Twenty-six-year-old Samantha Hamer and 33-year-old Kerida O’Reilly turned themselves in to Madison Police, in connection with the June 24th assault on Milwaukee Democrat Tim Carpenter during a violent protest in Madison.

Both women were tentatively charged with substantial battery and robbery with use of force as party to a crime, according to a police incident report updated Monday afternoon.

The beating left Carpenter with a concussion and a broken nose for which he required surgery.

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