Money pouring into a tight Silicon Valley congressional race is drawing attention to a loophole in campaign finance rules that obscures the influence of special interests. Three political action committees \u2014 Equality PAC, Equality California Federal PAC and Voter Protection Project \u2014 have spent a combined $221,233 in independent expenses\u00a0to support Assemblymember Evan Low in the Congressional District 16 race, such as buying advertisements to support his campaign. Low\u2019s July campaign finance filings showed committees also donated a total of $34,500 directly to his campaign, exposing how difficult it can be to define coordination between candidates and the groups that…<\/p>\n