Two cars belonging to the family of U.S. Rep. Russ Carnahan, D-St. Louis, were vandalized overnight in front of his home in Compton Heights.

According to neighbors, someone had spray-painted or painted the words “Traitor,” “Bailout for China is treason,” and “Psalm 2.”

Some of the graffiti appears to refer to the $700 billion financial-institution bailout package that Congress approved a few weeks ago. Carnahan had voted for the measure.

The vandal or vandals used white paint on the family’s black car, and black paint on its silver car. One vehicle was in the Carnahans’ driveway, and the other was parked on the street in front of the congressman’s house.

Sources tell us that the U.S. Capitol police is getting involved in the investigation. Earlier this week, six of Minnesota’s members of Congress — both senators and four House members –had been the victims of similar crimes.

According to the AP:

“Vandals late Tuesday and early Wednesday spray-painted graffiti on the homes and garages of Sens. Norm Coleman and Amy Klobuchar and Reps. Jim Ramstad, John Kline, Keith Ellison and Michele Bachmann.

“At the Coleman residence, ‘U R A criminal resign or else’ was spray-painted on the garage along with the words ‘Scum’ and ‘Psalm 2.’ At Ellison’s home, ’scum’ was scrawled on the garage and ‘traitor,’ ‘resign now’ and ‘Psalm 2′ on the house.

“The Bible’s Psalm 2 warns ‘kings of the earth’ against incurring God’s wrath.”