Norm Eisen, Barack Obama’s White House ethics czar, was such a stickler for enforcing the rules that even some colleagues privately expressed relief when he traipsed off to Prague for an ambassadorship.

Now, people can’t get enough of him.

Eisen and Richard Painter, an ethics lawyer from the George W. Bush administration, have teamed up to become two of the most vocal critics of President Donald Trump’s conflicts of interest. They not only sued the president within days of his inauguration, they have also appeared regularly on TV news and testified on Capitol Hill on all manner of legal minutiae.

Though government ethics law may seem a lonely pursuit, leading a resistance against the Trump team’s web of potential ethics woes clearly is not.

“I never imagined that White House ethics experts would be in such demand,” Eisen said by phone on a recent Friday as he shopped for groceries for his Shabbat dinner. “It’s an impenetrable ethics thicket of constitutional dimensions.”