Jeb Bush: 'These polls really don't matter'

Jeb Bush says his decline in Republican polls is irrelevant at this stage of what is a "marathon" presidential race.

In an interview on Fox News Sunday, Bush said his campaign has just begun television advertising and is developing a "ground game" to turn out voters in early contest states; actual voting starts in February.

"I'm confident I can win New Hampshire for sure," Bush said. "I'm going to work really hard at it."

Once at or near the top of GOP polls, Bush has fallen to fourth, fifth or even lower in some more recent surveys.

The former Florida governor, the son and brother of previous presidents, appears to be running behind three "outsider" candidates who are running against "establishment" politicians like Bush: Donald Trump, Ben Carson, and Carly Fiorina. In some cases, Bush trails current office-holders like Sen. Marco Rubio, a fellow Floridian.

In his Fox News Sunday interview, Bush he will continue stressing his gubernatorial record on cutting taxes and downsizing government and his plans to take similar actions in Washington, D.C.

"Campaigns are about getting better each and every day," Bush told Fox News. "Whether it's Donald Trump or you or anybody else, candidates have to get better. And that's what I intend to do."