Not for vice president. He's talking leader of the free world, commander-in-chief, the top job.
According to The Hill, Romney, in an interview with CNN, Romney first mentioned the usual suspects when asked about REpublican presidential candidates:
“Right now, we've got a very full group of people — Marco Rubio; Jeb Bush; Chris Christie; Rand Paul; Paul Ryan, of course, my running mate, an extraordinary man; John Kasich, governor of Ohio, doing a great job there; Scott Walker in Wisconsin,” Romney said.
Then he added, “We've got a lot of very good people. Susana Martinez in ... New Mexico. ... I didn't mention Mike Huckabee. Of course, Mike Huckabee ran before, did a fine job. He may be coming back and giving it another shot.”
The Hill noted:
Last year, Martinez said the time for a female president is “long past due.” But when asked if she would consider running on the national ticket, she said she was "focused on New Mexico."And this basically is what Team Susana has told me and the rest of the New Mexico political media.
In 2012, Martinez said serving as the guardian of her developmentally disabled sister would prevent her from living away from New Mexico.
But as I've written before, such speculation is not likely to stop, especially if she wins reelection this year.