Grover Norquist of Washington, D.C., is the founder and president of Americans for Tax Reform, the country’s leading advocacy group for reducing the burden of government taxes on businesses and homeowners. Mr. Norquist’s best-known accomplishment has been the “Taxpayer Protection Pledge,” which he asks all political candidates to sign as a guarantee that they would never vote for any policy that creates a net increase in taxes. In 1994, Mr. Norquist also co-authored the book Contract with America with incoming U.S. House Speaker Newt Gingrich. Nina Easton’s Gang of Five lists Mr. Norquist as one of five top leaders of the conservative movement today.