Many people in the crowd say they were forced into foreclosure because banks jacked up their monthly payments without warning. Hughe Espy says bankers are getting away with criminal activity.
"We want to tell...the attorneys general that they got to go toe-to-toe with the big banks, they got to stand up to the big banks. They've got to hold them accountable to correct this foreclosure crisis," he says.
Tham Ormenstein, policy director for Iowa's attorney general, says it's unclear if laws have been broken.
"It's a question that has been raised very seriously for the attorneys general, for the regulators. I don't know how that's going to play out," Ormenstein says.
The attorneys general are in D.C. until Wednesday, and they promise foreclosure is a top priority.