The New York Times profiles San Diego Congressman Darrell Issa (R, of course), who is rare among sitting legislators in that he openly runs his entrepreneurial enterprises while serving his district. Sometimes, the businesses he runs or the assets he owns benefit directly from government earmarks. And while direct conflicts of interest may not have been exposed (yet), he is clearly going all the way up to the line between ethical and unethical behavior as a public servant.
And this guy hasn't once been found in violation of the House Rules? If it were up to me, he be out on his ass (which must be sizable so as to support his very large wallet).