In September 2003, Public Interest Watch (PIW) complained to the Internal Revenue Service that Greenpeace USA tax returns were inaccurate and in violation of the law. The IRS conducted an extensive review and concluded in December 2005 that Greenpeace USA continued to qualify for its tax-exempt status. In March 2006 "The Wall Street Journal" reported that PIW's "federal tax filing, covering August 2003 to July 2004, stated that $120,000 of the $124,095 the group received in contributions during that period came from Exxon Mobil". In 2013, after the IRS performed a follow-up audit, which again was clean, and, following claims of politically motivated IRS audits of groups affiliated with the Tea Party movement, Greenpeace U.S. Executive Director Phil Radford called for a Congressional investigation into all politically motivated audits – including those allegedly targeting the Tea Party Movement, the NAACP, and Greenpeace.