Arizona Sen. John McCain and the California electorate share one overriding point in common: Both struggle mightily to enact campaign finance reform only to see their efforts routinely thwarted by the leadership of their respective parties or by court rulings of unconstitutionality.

Now backers of Proposition 25, the latest and most controversial of a decade-long series of campaign reform initiatives, hope to hitch their faltering wagon to McCain’s rising star. Even if the Republican challenger puts the state on the back burner to focus his insurgency on more promising venues, he’s brought their issue into the limelight, they say.