The Human Rights Campaign (HRC), a gay-activist group, is ramping up its efforts ahead of the election.
As part of the "Year to Win" initiative, HRC plans to train thousands of people in 13 cities.
"Their main purpose for existence is to influence public policy and politics, and to get people elected to office who are going to push their militant homosexual agenda," said Matt Barber, policy director for cultural issues at Concerned Women for America.
Brad Miller, director of the Family Policy Council department at Focus on the Family Action, said family advocates could face an uphill battle. HRC has an annual budget of more than $50 million.
He said grassroots groups and churches must get involved in the political process.
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