"Sir, you cannot think that I would try to undermine your work here."

In court last week, they began trying to undermine his credibility.

"We're not trying to undermine the court," the official said.

True, the man had been trying to undermine the Alliance for the last decade or so.

No one can accuse me of trying to undermine Israel's security, and certainly not right now.

They also try to undermine confidence in the entire process.

These two men spent much of their careers trying to undermine what the other said.

Which may be the reason that the Guardian has been trying to undermine it.

I am not trying in any way to undermine the compromise.

"It looks like you are trying to undermine the guy," he said.