A central pledge of President Bill Clinton's campaign was to reform the welfare system, adding changes such as work requirements for recipients. However, by 1994, the Clinton Administration appeared to be more concerned with pursuing a universal health care program. Gingrich accused Clinton of stalling on welfare, and proclaimed that Congress could pass a welfare reform bill in as little as 90 days. He insisted that the Republican Party would continue to apply political pressure to the President to approve their welfare legislation.  In 1996, after constructing two welfare reform bills that Clinton vetoed, Gingrich and his supporters pushed for passage of the Personal Responsibility and Work Opportunity Act, which was intended to reconstruct the welfare system. The act gave state governments more autonomy over welfare delivery, while also reducing the federal government's responsibilities. It instituted the Temporary Assistance for Needy Families program, which placed time limits on welfare assistance and replaced the longstanding Aid to Families with Dependent Children program. Other changes to the welfare system included stricter conditions for food stamp eligibility, reductions in immigrant welfare assistance, and work requirements for recipients. The bill was signed into law by President Clinton on August 22, 1996.  In his 1998 book Lessons Learned the Hard Way, Gingrich encouraged volunteerism and spiritual renewal, placing more importance on families, creating tax incentives and reducing regulations for businesses in poor neighborhoods, and increasing property ownership by low-income families. He also praised Habitat for Humanity for sparking the movement to improve people's lives by helping them build their own homes.

Answer this question "What is Gingrich's political affiliation?" by extracting the answer from the text above.
Republican Party