While filing taxes, There should be an option on the form for the Tax Payer to pick areas where he wants majority of his money to be spent on. Similar to the option on the form to donate for the election fund.
Some of the areas can be:
Agriculture
Arts & Humanities
Civil Rights & Liberties
Climate Change
Consumer Protections
Criminal Justice & Law Enforcement
Defense
Disabilities
Economy
Education
Energy
Environment
Family
Firearms
Foreign Policy
Government Reform
Health Care
Homeland Security & Disaster Relief
Housing
Human Rights
Immigration
Innovation
Job Creation
Labor
Natural Resources
Postal Service
Poverty
Regulatory Reform
Rural Policy
Science & Space Policy
Small Business
Social Security
Technology & Telecommunications
Trade
Transportation & Infrastructure