The phrase "going John Galt" or simply "going Galt" has been used by psychologist Helen Smith[12] and others[13] 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. Some people who claimed to be "going John Galt" discussed their reasons on a PJTV program in March 2009.[14] "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.[15] Ron Paul's American presidential campaign of 2008 included a play on the phrase, using "Who is Ron Paul?" on campaign T-shirts; his Congressional web site biography uses the same title.[16]