Accusations that politicians are corrupt are nothing new.

From violations of campaign or personal finance disclosure rules to ethics investigations, these are some of the things that land a politicians in trouble or cause the public to have an unfavorable view of those who lead.

Ask the members of the watchdog group Citizens for Responsibility and Ethics in Washington. The group recently released a report naming the 20 U.S. lawmakers it believes are the most corrupt.

The report is CREW's eighth on congressional corruption. It charges that 12 Congress members engaged in serious misconduct, while the remaining eight had some "misdeeds" that earned then a "dishonorable mention."

"There was no shortage of candidates for CREW's list this year, and 11 of the 20 members are joining it for the first time," the report stated. "In addition, one member, Rep. David Rivera (R-Fla.), has been under investigation by no fewer than six separate authorities -- quite the rap sheet for a freshman."

Here are the members of Congress who made the CREW most corrupt list. Start the slideshow to see if your district rep made the list.