Claim: Homeland Security Act of 2002 (HSA) was introduced in the aftermath of the September 11 attacks and subsequent mailings of anthrax spores and enacted by 118 members of the 107th United States Congress on November 25, 2002.
Evidence: The HSA was cosponsored by 118 members of Congress. 
the 107th United States Congress 100 senators
435 representatives
5 non-voting delegates