Rick Santorum has panned President Barack Obama's plan to tie some foreign aid to gay rights, CNN reported.

The president on Tuesday issued a memorandum directing all agencies engaged abroad to make certain U.S. aid programs “promote and protect” the rights of gay people.

The memo instructs agencies to increase government and civil society engagement in an effort to promote gay rights, including combating criminalization of LGBT status or conduct abroad, and requires agencies to submit an annual report detailing their progress towards advancing LGBT issues.

Reacting to the news in Iowa, Santorum, a vocal opponent of gay rights, in particular marriage equality, told reporters that decisions about foreign aid should be based on humanitarian need, “not based on whether people are promoting their particular agenda.”

“Obviously the administration is promoting their particular agenda in this country, and now they feel its their obligation to promote those values not just in the military, not just in our society, but now around the world with taxpayer dollars,” Santorum said.

Santorum also suggested that Obama is being less than forthright about his position on gay marriage.

“He said he's for traditional marriage, and now he's promoting gay lifestyles and gay rights, and he's fighting against traditional marriage within the courts, and I think he needs to be honest,” he said.

(Related: Rick Perry condemns Obama for tying foreign aid to gay rights.)