(CNN) - White House hopeful Rick Perry turned his eye away from Pres. Barack Obama's "war on religion" and toward his sweeping health care law in a new ad debuting in Iowa Thursday.
The spot, called "Obamacare," also goes after fellow GOP candidates Mitt Romney and Newt Gingrich, claiming the two were equally supportive of government-mandated health insurance. The spot will run statewide in Iowa and nationally on Fox News Channel.
An announcer says, "We don't want government mandated health care, yet Newt Gingrich supports it. And Mitt Romney? He put it into law in Massachusetts. Worse, Barack Obama forced it on the entire nation. Rick Perry. He'll repeal it, starting day one."
Perry appears, saying, "I won't let the big government liberals ruin this country."
In a statement accompanying the 30-second ad, Perry's Communication Director Rick Sullivan lumped Gingrich, Romney and Obama together as supporters of big government.
"Mitt Romney, Newt Gingrich, and President Obama all support government health care mandates," Sullivan said. "Gov. Perry opposes government-mandated health coverage and is firmly committed to repealing the job-killing Obamacare to protect families and job creators from the burden it imposes on them."
Romney has long been criticized on the campaign trail for his role in crafting Massachusetts' health care law, a measure that Obama has said was a model for his own national law.
Gingrich, who has recently come under more scrutiny as his poll numbers rise, has been criticized less, though rival candidates point to his past support for an individual health care mandate as a sign of his less-than-conservative credentials.
Both Romney and Gingrich have said they would repeal Obama's health care law if they are elected president.
Perry's "Obamacare" ad comes a day after the Texas governor released a spot criticizing Obama for a "war on religion," taking particular aim at the president's stance on "Don't Ask Don't Tell" and prayer in school.
"There's something wrong in this country when gays can serve openly in the military but our kids can't openly celebrate Christmas or pray in school," Perry says in ad.
–CNN's Paul Steinhauser contributed to this report.