Public interest groups are urging citizens to back a bill up for a vote Tuesday in the California Assembly that would require the disclosure of large donations to political advertisements shown across the state. Under AB 1148, also known as the  California Disclose Act , the three largest donors to TV, radio, web and printed political advertising must be named. “This would be a huge win for democracy in California, allowing citizens to give proper weight to the different messages they hear and make informed decisions at the ballot box,” MapLight , a nonprofit that tracks the influence of money in politics, wrote in an email message to supporters. The California Chamber of Commerce has announced its opposition, dimming the bill’s prospects, the  San Jose Mercury News stated. Beverly Hills voters who want to share their thoughts on the proposal with 42nd Assembly District representative Mike Feuer (D-Los Angeles) can contact his office here . (Note: Beverly Hills is joining the  newly created 50th Assembly District  in the November 2012 election due to redistricting. Until then the city is represented by Assemblyman Feuer as part of the 42nd Assembly District.) Be sure to follow  Beverly Hills  Patch on  Twitter  and “Like” us on  Facebook . See the original post here: State Assembly Bill Seeks to Disclose Political Ad Donors