Stop Taxpayer Funding of Hamas Act

This bill prohibits U.S. government funds from being used in Gaza unless the President certifies to Congress that the funds won't benefit Hamas, Palestinian Islamic Jihad, or any group designated as a foreign terrorist organization. It also blocks U.S. funding through United Nations entities in Gaza if those entities promote anti-Israel or anti-Semitic ideas. The key mechanism requires the President to provide specific certifications to congressional committees before any federal funds can be spent in Gaza. This directly affects U.S. foreign aid spending and UN programs operating in Gaza.