Income taxes are the backbone of most state budgets, but you wouldn't gather this fact based on the current trend to cut or eliminate them. A recent, cheerful Wall Street Journal op-ed from anti-government advocate Grover Norquist offers a clear sign that tax-cutting states are taking the wrong approach. The long-time proponent of anti-tax pledges wrote favorably about the legislative and gubernatorial plans to cut income tax cuts across the country. As usual, he failed to address that income taxes support state investments in education, infrastructure, health care and other important public services.