Former Massachusetts Gov. Mitt Romney (R) says he isn't sure yet if he should run for president — but he thinks Sarah Palin should.

Speaking with Piers Morgan on CNN Tuesday night, Romney said Palin would bring a lot to the 2012 Republican primary.

"I believe she is an extraordinarily powerful and effective voice in our party, that she has generated a great deal of support and attention, that she'd be great in a primary process," Romney said. "She'd bring attention to the process, and frankly, the more people we have on the stage in those debates talking about different ideas and different approaches, the better."

In the same interview, Romney said his wife had been urging him to run for president but that he has not come to a final decision. He said there were a lot of questions to consider, including health and whether he could cultivate the support necessary to run.

"There are matters of health, of support, of the kind of network you'd like to have — of individuals you'd like to have behind you," Romney said. "Those are things you've got to assess before you make a final decision."

Still, Romney has shown signs recently that he has in fact decided to seek the nomination. Earlier Tuesday he said he would not apologize for the healthcare plan he implemented as governor, which, because of the individual-mandate provision, critics have said is strikingly similar to President Obama's healthcare reform law.

Like other possible contenders, Romney also traveled to Israel recently and met with Israeli Prime Minister Benjamin Netanyahu, possibly to shore up his foreign-policy credibility.