Final answer:
President Obama placed a 35 percent tariff on Chinese tires in 2009 based on the International Trade Commission's recommendation to address market disruption caused by increased imports from China.
Step-by-step explanation:
In April 2009, the union representing U.S. tire manufacturing workers filed a request with the U.S. International Trade Commission (ITC) to investigate tire imports from China. The ITC found that from 2004 to 2008, U.S. tire manufacturers suffered declines in production, financial health, and employment due to increased tire imports from China. As a result, the ITC recommended placing an additional tax on tire imports from China. President Obama and Congress agreed with this recommendation, and in June 2009, tariffs on Chinese tires increased from 4% to 39%.