Politico: The federal government's debt is the top concern of tea party activists, according to a new Gallup survey. Sixty-one percent of the 697 self-identified tea party supporters surveyed identified the federal debt as one of the "extremely serious threats" to the future well-being of the United States. Tea party activists identify terrorism, the size and power of government, health care costs and illegal immigration as the next biggest threats facing the future of the country.