Florida senator Marco Rubio told the crowd at a rally in Littleton, New Hampshire that his competence for the presidency is as good as the other GOP candidates.

The 44-year-old Cuban American native of Miami was asked to respond to critics who question his ability to hold the nation's highest position, considering many of his rivals had prior executive experience, either at the private sector or at the state level.

"There is no such thing as experience that fully prepares you for the presidency," said Rubio via ABCNews. "Being President of the United States is not like being a governor."

The question has become a common fixture in Rubio's campaign, but something the senator has addressed effectively thus far. However, he still has a long way to go to convince voters that he is more qualified to be president than the three GOP candidates -- Jeb Bush, Chris Christie and John Kasich -- with gubernatorial experiences.

Bush and Christie also held rallies in New Hampshire recently, confessing their affection for the state as well as flaunting their credentials as governors, per NYTimes. Bush, in particular, talked about the amount of jobs he generated while in office.

"Anyone who tells you 'when I was governor, we created a million jobs,' I would be concerned because if they're telling the truth, that means they grew government by a million jobs," Rubio reacted. "That's the only way a politician creates a million jobs."

Meanwhile, Christie has frequently argued that his stint as the governor of New Jersey has made him a more competent leader than the Florida senator.

"There's not a lot of depth there," Christie said of Rubio on NBC. "He has not had to make executive decisions. And it¹s much different than just being one of a hundred and one vote in a subcommittee."

Rubio responded to Christie's comments by saying he had been speaker of the Florida House and had worked closely with some governors over the course of his tenure. He said being a governor does little to prepare someone for the presidency.

"The one thing the president does have to do is be commander-in-chief. And the governors are not commander-in-chief," said Rubio, before adding "and neither are senators." Rubio is confident that he has shown better judgement in matters of national security than any of his rivals.

At any rate, Rubio still needs to pick up the pace of his campaign as the latest CNN poll released this week showed him dropping two points since November. The Florida senator is now tied with Ben Carson at the third spot with 10 percent. Frontrunner Donald Trump jumped three points to 39 percent, while the magnate's nearest rival Ted Cruz is at 18 percent.