"The President has passed up a perfect opportunity to dispel some of the ethical clouds that have plagued his Administration," he said.

Because of Ladner's behavior," they wrote, "an ethical cloud hangs over the university.

"He fails to file campaign disclosure information, and there is always some ethical cloud hanging around his head," Mr. Engel said.

However, Passman was under an ethical cloud.

There's a tremendous ethical cloud that's swirling around him, and it's important for him to answer these issues immediately.

Even the newspapers say he has an ethical cloud hanging over his head.

He left office under an ethical cloud of corruption regarding state aid to railroads.

She said there was "an ethical cloud over this Capitol because of how he is conducting business here."

It was unclear Tuesday night how his decision to resign under an ethical cloud would affect his re-election chances.

There's an ethical cloud hanging over the House that will only get darker in the days to come.