U.S. Capitol police said “unlawful demonstration activity” such as crowding, obstruction or sitting in unauthorized areas led to the arrest of more than 400 protesters Monday outside the Capitol. Democracy Spring is a group working to get rid of laws that allow money to influence the U.S. political system. The group lists individuals including actor Mark Ruffalo and dozens of other political groups who support the movement on their website. More protests are planned this week.

http://www.reuters.com/article/us-usa-capitol-demonstration-idUSKCN0X82M1