A partial timeline of Campbell's efforts:
In 1990, she appealed the Harbor Steps project, a development at First and Union downtown, arguing that the project was out of scale with surrounding buildings. She lost.
In 2004, she filed an initiative to block a different version of the tunnel, arguing that it was too expensive and that rebuilding the viaduct was a better option. That initiative would have barred the state from using city right-of-way to build the tunnel, language that's virtually identical to her current proposal, Initiative 101. It was unsuccessful.
In 2007, she filed an appeal to stop the Port of Seattle's cruise facility at Terminal 91, arguing that the port had done insufficient outreach and mitigation (the appeal failed, but pushed the opening of the cruise terminal back a year.)
In 2009, she sued the state for moving forward with the tunnel before the final environmental impact statement on the project is completed, arguing that the state was "making a mockery" of the environmental process.
That same year, she filed an ethics complaint with the state, charging that state transportation staffers had illegally interfered in the mayor's race by trying to ensure that it wasn't "a referendum on the tunnel."
Last year, of course, she filed an initiative to prevent the state from building its current tunnel proposal in city right-of-way---not to be confused with the anti-tunnel referendum, which would overturn portions of agreements between the city and state on the tunnel. That one's going on the ballot; the city is currently challenging Campbell's proposal in court.
And this week, she filed her petition to recall Conlin.
Campbell has not responded to an email seeking comment on her latest effort.