tonight, there's a battle under way, a duel between two articles of faith religious freedom and freedom of discrimination. ABC's Cecilia Vega on the debate in Arizona tonight. Reporter: Protests over... See More
tonight, there's a battle under way, a duel between two articles of faith religious freedom and freedom of discrimination. ABC's Cecilia Vega on the debate in Arizona tonight. Reporter: Protests over night in Arizona -- the gay community saying it is blatantly discriminated against by a bill that allows businesses to refuse to customers based on personal religious beliefs. It seems like it's setting up an environment for hate. Reporter: A baker, for example, who opposes same-sex marriage on religious grounds could refuse service to a gay couple that wants to buy a cake. The state legislature passed the bill, but not without a fiery debate. This is simply protecting religious freedom that is recognized and defended and supported in the first amendment that the founders wanted, nothing else. There's only one type of equality. And it's equal. Reporter: 21 states -- states like Kansas, Ohio, and laws to Arizona and failed. Utah is considering one. To the bakers line the Klines it's about relinls you freedom. I believe in what the bible says and that's how I feel about it. Reporter: The state investigated a discrimination claim and ultimately, the bakery shut down after the public backlash. I'd rather to stand up for what I believe in. Reporter: As the backlash in Arizona goes on the bill is now on government Jan brewer's desk, she's vetoed similar bills in the past. Cecilia Vega, ABC news, los Angeles.
This transcript has been automatically generated and may not be 100% accurate.