Former presidential candidate Mitt Romney and former House Speaker and CNN host Newt Gingrich are the latest Republicans to urge Arizona Governor Jan Brewer, a Republican, to veto a bill opponents say would legalize discrimination against gay people.

The measure, known as SB 1062, states that individuals and businesses can refuse service based on their religious beliefs. Opponents have called the measure a license to discriminate on the basis of sexual orientation.

On Tuesday, a spokesperson for Governor Jan Brewer denied reports that she had decided to veto the bill.

(Related: Apple, which is investing heavily in Arizona, calls on Gov. Jan Brewer to veto SB 1062.)

While SB 1062 has captured the nation's attention, at least 8 other states are considering similar proposals.

“@GovBrewer: veto of SB1062 is right,” Romney tweeted on Tuesday.

Gingrich answered his own show's Crossfire question in a tweet.

“Veto RT @Crossfire If you were Governor of AZ would you sign or veto the bill? Reply w/Sign or Veto using #Crossfire,” Gingrich messaged.

The state's two Republican senators, John McCain and Jeff Flake, also spoke out against the bill.

(Related: John McCain says anti-gay bill would hurt Arizona's image.)

During an appearance on ABC News' This Week, Matthew Dowd, former chief strategist for President George W. Bush, described the bill as using religion to discriminate against gays.

(Related: Former Bush aide Matthew Dowd: Arizona anti-gay bill uses religion to discriminate.)

Additionally, three Arizona GOP state senators who voted for the bill, Senators Bob Worsley, Adam Driggs and Steve Pierce, have since publicly stated their opposition to the measure.

“While our sincere intent in voting for this bill was to create a shield for all citizens' religious liberties, the bill has instead been mischaracterized by its opponents as a sword for religious intolerance,” the three lawmakers wrote in a letter addressed to Brewer. “These allegations are causing our state immeasurable harm.”