Claire McCaskell may have made a serious mistake when she attacked the super PACs getting involved in the Missouri Senatorial contest.

A Democratic lawmaker may have violated prohibitions against soliciting campaign contributions on government property while appearing on MSNBC on Monday night.

“I’m asking regular folks to be my super PAC,” Missouri Sen. Claire McCaskill said on MSNBC’s “Hardball with Chris Matthews” from inside the rotunda of the Russell Senate Office Building while discussing how super PACs are targeting her.

But what could be problematic for the senator is that she also reminded MSNBC’s viewers that “on ClaireMcCaskill.com, people can give 25 bucks and, if we get a lot of those, we will have our own super PAC, and that’s the kind of PAC that should be super, made up of regular people giving small amounts.”

Fundraising on federal property is illegal. Oops!