This is pretty remarkable and indicative of the toxicity of the One United Bank scandal that has snared Rep. Waters.

The Hill:

Three staffers working for embattled Rep. Maxine Waters (D-Calif.) were asked by security officers to leave an event in downtown Washington on Thursday after they tried to display large campaign signs just as House Speaker Nancy Pelosi (D-Calif.) was about to speak.

The aides were holding lawn signs that defended Waters from the ethics charges she is facing in the House.

[...]

Waters told The Hill afterward that the staffers had been displaying the signs at the annual legislative conference for the Congressional Black Caucus Foundation, which was held at the Washington convention center a few blocks away. "It ain't about Nancy. It's about black people," Waters said.

The staffers who attended the Pelosi event declined to speak to The Hill, but before leaving one of the aides identified Waters as his aunt and said they were at the X Prize ceremony to see the cars on display. The Waters campaign aide said no family members were among the staffers sent to the CBC conference. Told that one of the staffers had identified her as his aunt, Waters shrugged and replied: "I'm everybody's aunt."