Supporters and opponents of the 11 propositions on the November ballot already have contributed nearly $300 million toward passing and defeating those measures, with more than two weeks still to go until election day, according to a new analysis of campaign funding.

Groups that monitor money in politics said the funding is among the highest ever in California.

The analysis was conducted for The Chronicle by MapLight, the nonpartisan Berkeley organization that tracks money in politics. It found that as of this week, $292 million had been collected by dozens of committees advocating support or opposition to the propositions.

That total undoubtedly will climb as election day approaches.

Read more at the San Francisco Chronicle