Former Pennsylvania Senator Rick Santorum, a likely 2016 presidential candidate, said Sunday that he was sorry to see Indiana's so-called religious freedom law changed to include LGBT protections.

A strong backlash against the bill led Republican Governor Mike Pence to ask lawmakers to rewrite the law to include exceptions based on sexual orientation and gender identity.

(Related: Indiana, Arkansas governors sign revised “religious freedom” bills.)

Appearing on Face the Nation, Santorum said that he preferred the original bill which critics argued would allow a business to refuse service to gay men and lesbians based on religious beliefs.

“We aren't for discrimination against any person,” Santorum said. “No business should discriminate against who you are. But it should have the ability to say we're not going to participate in certain activities that we disagree with from a religious point of view. I don't think frankly either bill does that, but the second one, the one that Governor Pence backed away from, moves toward that.”

“Tolerance is a two-way street,” he added. “If you are a print shop and you are a gay man, should you be forced to print 'God Hates Fags' [signs] for the Westboro Baptist Church? Should the government force you to do that? That's what these cases are all about … This is where I think we just need some space to say, 'Let's have some tolerance.'”