Here's a news story that's a hardy perennial: people coming to Washington to do good and staying to do well.
Or, as a friend who was a former chief of staff for a senior member of Congress put it, outside groups "will pay us a lot of money for what we know."
So President Obama, who promised that his administration would be highly ethical, put in place rules prohibiting his former aides from directly lobbying the government for two years.
But those efforts "have done little to slow a tide of groups hiring former top aides as highly paid consultants, speakers and media advisers in an effort to influence the administration," says The Washington Post.