A new public opinion survey by KTVU-TV and the Field Poll shows continued deteriorating support for three of the major propositions:

• Proposition 85: 46-43% yes

• Proposition 86: 45-45% yes

• Proposition 87: 44-40% no

If Proposition 87 loses in spite of all of the money and political capital that have spent to promote it, including months of TV ads and numerous public appearances by Bill Clinton, Al Gore, and assorted celebrities (everyone from Julia Roberts to Robert Redford to Eva Longoria), it will be one of the big stories of the election year.

The high-profile ballot measures, like Proposition 86 and 87, have roomsful of money to spend on tens of millions of dollars in ad buys dropped by deep-pocketed donors to make sure that the measures’ pros and cons are getting exhaustive exposure to the voting public — or at least the version of pros and cons that ad writers craft.

Other measures are flying under the radar and getting the word out to potential supporters in other ways. One example is Proposition 85, the measure that would require parental notification for minors to take place before an abortion could occur (and would also enact less well-publicized requirements, such as mandating that doctors report how many abortions they perform on minors per year).

According to a Riverside Press-Enterprise article yesterday, polls consistently indicate that a significant majoirty of Californians do not want Roe v. Wade overturned, but they have much less difficulty with laws that make abortions more difficult to get.

Last year, Proposition 73, which was substantially the same measure as Proposition 85, failed at the polls by a margin of 53-47%. The supporters of Proposition 85 argue that they re-introduced the measure this year because the merits of last year’s proposition got swamped by the unpopularity of the governor’s raft of special election measures.

The Press-Enterprise article echoes this view, noting that the political climate is different this time around. A UC Riverside political science professor, Shaun Bowler, is quoted in the article as saying, “This is one of those hot-button issues that should generate lots of turnout among conservative voters.”

Proposition 85 could well pass this year — without more than a fraction of the publicity or advertising that’s flowed into higher-profile proposition campaigns.