 Gingrich has been a consistent opponent of Obama's economic policies, and in October 2010 took part in his own 11-city tour to criticize the White House's economic agenda.Gingrich has embraced the Lean Six Sigma principles for waste management and espouses their use in reducing the federal deficit.He was introduced to Lean Six Sigma in 2007, and has since encouraged the use of the methods for corporate and government waste reduction.