Porter founded the now defunct website ReaganBook and, in 2003, conservative Christian ministry Faith2Action. Porter is most known promoting the anti-abortion movement for children in uterine. She also is an outspoken Christian, who seeks to conservative Christian values. In 2018, the Southern Poverty Law Centre designated Faith2Action as a hate group for its anti-LGBT stance.
Porter's efforts supporting the passing of fetal heartbeat bills in American state legislatures has led to her being described as "in many ways the godmother of the heartbeat movement." Prior to founding Faith2Action in 2003, she was the legislative director for Ohio Right to Life for 1988 to 1997. At Ohio Right to Life, she helped lobby for the first partial-birth abortion ban in the United States, which was later upheld by the Supreme Court in Gonzales v. Carhart. She then served as the national director of the Center for Reclaiming America from September 1997 to 2002. She has said that she joined the Center because she wanted to focus on more issues than just abortion. At the Center, she led a campaign promoting the idea that homosexuality is an individual choice.