She laced up her sneakers and walked across the U.S.

Doris Haddock, whose one-woman march for campaign finance reform began in Pasadena, California, on New Year’s Day of 1999 and ended 14 months and 3,200 miles later in Washington, DC, died March 9 at the age of 100.

Widely known as “Granny D,” Mrs. Haddock lived long enough to denounce the U.S. Supreme Court majority that gave corporations the First Amendment rights of human beings.

“The Supreme Court,” she said, “representing a radical fringe that does not share the despair of the grand majority of Americans, has today made things considerably worse by undoing the modest reforms I walked for….The Supreme court now opens the floodgates to usher in a new tsunami of corporate money into politics.”

In 2004, at age 94, Granny D. ran for the U.S. Senate against Republican Judd Gregg, receiving 34% of the vote despite refusing private campaign contributions.