to describe productive members of society cutting back on work in response to the projected increase in U.S. marginal tax rates, increased limits on tax deductions, and the use of tax revenues for causes they regard as immoral. "Who is John Galt?" signs were seen at Tea Party protests held in the United States and at banking protests in London in April 2009. Texas Republican congressman Ron Paul's presidential primary campaign of 2008 included a play on the phrase, using "Who is Ron Paul?" on campaign T-shirts; his web site biography uses the same title.