OPINION As longtime fans of the Guardian and as allies in almost every fight, including the struggles for public power, affordable housing, people-focused land use policy, and clean and open government, we do not like finding ourselves on the opposite side of an issue as important as this year's state Senate race. Respectfully, we must say that we believe the Guardian's failure to endorse Carole Migden in that race was a colossal mistake — not unlike the decision to endorse Angela Alioto over Tom Ammiano and Matt Gonzalez for mayor in 2003.

Both Leno and Migden are good votes in Sacramento. But the simple reality is that Carole Migden has been there for the local left in ways that make her the only choice for progressives willing to take on the establishment. Certainly Migden has made herself vulnerable to political attacks. Her failure to retain a professional treasurer for her campaign finance filings was clearly an error of judgment. But for us, none of this outweighs her incredible record of achievement in Sacramento or her far more reliable support of progressive candidates and causes in San Francisco.

Guardian readers should by now be familiar with Migden's long record in Sacramento: the California Clean Water Act, saving the Headwaters Forest, community choice aggregation (CCA), a series of domestic partnership laws that have established a viable alternative to marriage in California while setting the stage for extending marriage rights to same-sex couples, a remarkable package of foster care reforms, and cosmetics safety legislation.

But it is Migden's role locally that makes her so important to San Francisco progressives. Migden is the only candidate in the race who has been there for progressives in difficult political battles. As candidates for the Democratic County Central Committee, we are grateful that the Guardian endorsed our entire slate. But we wonder if the Guardian considered the fact that the vast majority (indeed, almost unanimous) of Hope Slate candidates are Migden supporters, because they are the leading progressive candidates to retain a progressive majority on the Board of Supervisors in November. It is not coincidental.

Few politicians who have risen as high in the establishment food chain as Carole Migden have done so retaining a willingness to fight for the underdog. Guardian readers should be familiar with the litany: she supported Aaron Peskin and Jake McGoldrick in 2000; reached out to Chris Daly soon thereafter and stood strongly with him against subsequent challenges; never, ever supported Gavin Newsom; attended the Progressive Convention; and financed progressive campaigns from the Affordable Housing Bond to Muni reform.

Migden is a scrappy street fighter who helps other scrappy street fighters. As one of the very first queers and one of the first women to take political power at these levels, she had to be. Someday progressive politics may not need scrappy street fighters (and someday maybe women will be better represented in public office) — but not yet.

We are proud to stand with Carole Migden, as she has stood with us. She is the candidate in this race who we can count on to fight when it really counts.

Bill Barnes, Chris Daly, Michael Goldstein, Robert Haaland, Joe Julian, Eric Mar, Rafael Mandelman, Eric Quezada, and ...