The eyewitness also claimed Ditto, real name Mary Beth Patterson, was ejected from the bar after she kicked out at a bartender.
"She walked out in the middle of the street, threw off her shoes and purse and screamed OBAMA! OBAMA!" as friends arrived to try to put her in a car,” an onlooker told the Willamette Week.
"The cops came — like 10 or 12 cars.”
The 32-year-old star was later released after sobering up, but could face up to six months in jail and fined up to $2,500 if convicted on a disorderly conduct charge.