"Hasner is a strong conservative who will work to protect the freedom of Americans by advocating for a limited government. He is pro-life, and consistent in his support of the traditional values that are the bedrock of our society," FRC Action PAC Chairman Tony Perkins said in a statement.
Hasner, who is Jewish, said in statement that the endorsement was "a validation of my lifelong and continued defense of faith, family and the sanctity of life."
Hasner and LeMieux face two nonestablishment candidates in the primary: former Army Col. Mike McCalister and former Ruth's Chris CEO Craig Miller.
Roll Call Politics rates the Florida Senate race Leans Democratic.
Former Sen. Scott Brown, R-Mass., candidate for U.S. Senate in New Hampshire, holds his hand over his heart during the singing of the national anthem as he waits to take the stage for his town hall campaign rally with Sen. John McCain at the Pinkerton Academy in Derry, N.H., on Monday, Aug. 18, 2014.