Age: 45
Occupation: U.S. Secretary of Education
Previous TIME 100 Appearances: 0
President Obama's Education Secretary, who has been given $100 billion to reshape public schools in America, has launched a major initiative to rework President George W. Bush's signature No Child Left Behind Act. Pushing for more school hours, better teacher training and more competition from charter schools, Duncan has the advantage of tapping into one of the few issues with bipartisan support in Washington.