The messages of white supremacy spray-painted on the parking lot and walkway of the Oklahoma Democratic Party headquarters Thursday afternoon washed away with a squeeze of a power sprayer trigger.

The water sprayed cleared messages such as, "Welcome to Germany," and "Trump hates Israel," amid other messages outside the building at 3700 N Classen Blvd.

Police opened a hate crime investigation Thursday to find who was responsible for the racist and derogatory graffiti against Democrats, blacks, Jews and gay, lesbian and transgender people with Nazi references.

Anna Langthorn, executive director of the Oklahoma Democratic Party, said other state agencies, non-profit groups and businesses are located in the building.