The Knights of Columbus: Crusaders for Discrimination pointed out that the organization "uses its manpower and money to push for legislation that does not match the beliefs of many Catholics or the will of the electorate. The Knights continue to wage a decades-long battle against abortion legislation, but what stands out now is the scale of its political expenditures—more than $10 million since 2004—and this does not include funds from the thousands of local fraternity councils and assemblies. The Knights' funding of anti-same-sex marriage campaigns goes towards a cause that is rejected by most Catholics—polling data reflects a stronger support for same-sex marriage among Catholics than any other Christian faith group, or the American population as a whole." 
The Knights of Columbus, founded on March 29, 1882 by Father Michael J. McGivney, is a Roman Catholic fraternal service organization and is the most well-known and largest out of all Catholic organizations everywhere. Their headquarters is located in New Haven, Connecticut. Their motto is "In service to one. In service to all" and they really used to appear that good but yet are pro-conservative and they contradict their own motto, see Conservative deceit.
While they do some good things such as being involved with the Special Olympics, doing Tootsie Roll drives for mentally disabled people, they have been known to be divisive especially in areas where divisions run rampant. They're not supposed to even be a partisan or political organization, much less ones to endorse any candidates for office, they committed a double standard by letting George W. Bush speak at their annual convention, George H.W. Bush had come to their convention during the 1992 U.S. Presidential Election. Yet, they didn't even think to invite John Kerry because of his Pro-choice position, even though Kerry is a good Catholic and better Christian than the Bushes. The Knights adopted a strongly Pro-life position, are also active in trying to ban the right to same-sex marriage, and are OK with violating the separation of church and state, such as promoting the "Keep Christ in Christmas" slogans, see War on Christmas. They were also responsible for having the "under God" added to the Pledge of Allegiance.
When they got involved with the Proposition 8 ballot in California, they made the "Dishonor Roll".  Funny that John Dingell is a member of the Knights of Columbus and so was Sargent Shriver and Ted Kennedy.