[1][2] Up until 2020, it was an officially recognized political party in Massachusetts, losing that status as the result of vote tallies in the November 2020 election.

[5] The GRP has supported Green Party presidential candidates such as Ralph Nader, David Cobb, Cynthia McKinney, Jill Stein and Howie Hawkins.

The 10 key values are: grassroots democracy, ecological wisdom, social justice and equal opportunity, nonviolence, decentralization, community-based economics, feminism, respect for diversity, personal and global responsibility, and future focus and sustainability.

It supports a far bolder and faster transition from fossil fuels to safe, clean renewable energy than the Democratic and Republican parties.

[11] In 2004, with David Cobb as its presidential candidate, the Green-Rainbow ticket was unable to meet the required 3% threshold, and subsequently lost recognition in Massachusetts of state party status.

Also in 2004, Green-Rainbow Party candidate Jill Stein ran for state representative in the 9th Middlesex District, which included portions of Waltham and Lexington.

[21] She received 3,911 votes (21.3%) in a three-way race, ahead of the Republican candidate, but behind Democratic incumbent Thomas M. Stanley.

In March 2006, at its nominating convention, the party nominated five candidates for statewide office: Grace Ross for governor, Wendy Van Horne for lieutenant governor, Jill Stein for secretary of the Commonwealth, James O'Keefe for treasurer, and Nathanael Fortune for auditor.

[13] When Van Horne withdrew from the race in early September, she was replaced by Martina Robinson, a 30-year-old disability and equal marriage rights activist.

Jill Stein officially announced her entrance into the governor's race on the steps of the Massachusetts State House in Boston on February 8, 2010.

[17] Stein announced on April 3, 2010, that her lieutenant governor running mate would be Richard P. 'Rick' Purcell (born December 21, 1959), an ergonomics specialist from Holyoke.

Stein received 456,169 nationwide while advocating for a Green New Deal to address climate change and financial crises.

Five candidates appeared on the ballot, the results are as follows: All members of the party were able to apply to be delegates to be sent to the national convention.

In the November 8, 2016 general election, presidential candidate Jill Stein received 1.4% of the vote in Massachusetts, Green-Rainbow Party candidate for State Representative Charlene DiCalogero (12th Worcester District) received 20% of the vote in a two-person race, and Green-Rainbow Party candidate for State Representative Danny Factor (14th Middlesex District) received 3.3% of the vote in a three-way race.

On May 8, 2017, Green-Rainbow Party member and former candidate for State Representative Charlene DiCalogero was elected Library Trustee for the town of Berlin, Massachusetts.

In June 2017 Green-Rainbow Party member and Smith College Physics Professor Joyce Palmer-Fortune was elected selectperson from the town of Whately.

Palmer-Fortune previously had held the seat from 2009 until 2015 and had promoted clean, green energy solutions during her tenure.

In the summer of 2017, Arlington Massachusetts resident and former Green-Rainbow Party candidate for Treasurer Ian Jackson ran for Massachusetts State Senator in a special election held in July 2017 to fill a vacant seat in the 4th Middlesex District and received 11% of the vote.

Green-Rainbow Party member Sean Connell ran for Fall River School Committee and was eliminated in the election runoff, finishing in 16th place.

The GRP engaged in campaign work supporting the Green Party's nominees for President and Vice-President, Howie Hawkins and Angela Walker.

The Green-Rainbow Party (GRP) currently has four regular meeting local chapters:[34] Greater Boston, SouthCoast, Central Massachusetts, and Pioneer Valley.

The body with the highest amount of power in the Green-Rainbow Party is its State Convention (consisting of all GRP members) which convenes once per year.