Madelyn Hoffman has formed an exploratory committee for a possible bid for the Green Party nomination for U.S. Senate against Cory Booker in 2020.

Hoffman, 62, spent eighteen years as executive director of New Jersey Peace Action and is a longtime environmental and social justice activist. She’s been on the political scene for decades; in the 1980s she led the opposition to the Warren County trash incinerator project and headed the Grass Roots Environmental Organization (GREO).

If she runs, this will be Hoffman’s fifth bid for public office.

In 1996, she was the Green Party nominee for vice president on a ticket with Ralph Nader. Because of New Jersey’s early filing deadline for independent candidates – it was in April back then – Nader ran with Hoffman in New Jersey while running with Winona LaDuke in most states.

Bill Clinton carried New Jersey by a 54%-36% margin against Bob Dole, with Ross Perot winning 9%. Nader and Hoffman won 1% of the vote.

She ran for governor in 1997 and finished fifth in a field seven candidates with 0.44% of the vote. Incumbent Christine Todd Whitman was re-elected by 25,426 votes, 47%-46%. Hoffman received 10,703 votes.

She challenged Rep. Michael Pappas (R-Rocky Hill) in 1998 and won 1,409 votes (0.76%). Democrat Rush Holt unseated Pappas by a 50%-47% margin.

Hoffman returned to the ballot last year as the Green Party candidate for U.S. Senate. She finished third in a field of seven candidates with 0.70% — 1,686,504 votes behind incumbent Bob Menendez.