(CNN) - Former House Speaker Newt Gingrich, who gave Mitt Romney some trouble in the Republican presidential primaries, said the GOP would have to make big changes before he'd consider another White House run.
"I have no idea at this stage," Gingrich, 69, said Sunday about the possibility of a future campaign while taking part in a book-signing tour in Florida, according to the Naples Daily News.
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Despite a rough start to his presidential run, Gingrich rose to become a formidable opponent to Romney at one point earlier this year but failed to win enough delegates to be considered a serious contender for the nomination.
However, he maintained a high-profile role in the general election while acting as an occasional surrogate for Romney and frequenting political talk shows.
But Gingrich said Sunday the Republican Party needed to make some serious adjustments before he would consider tossing his hat back into the ring for president.
Gingrich echoed the sentiments of many other Republicans, telling the Naples publication the GOP needs to move beyond its post-mortem focus on Romney's personality and learn to "modernize and adapt."
"Republicans have to stop and take a deep breath," he said, adding the party needs a "practical solution" for immigration. Democrats and Republicans also need to "slow down and listen to each other," he said.
Gingrich has been critical of the party since Romney lost the November 6 election, pointing out that the GOP needs to adapt to changing demographics.
While Romney won white voters, he overwhelming lost among Latinos (President Barack Obama took 71%) and among African-Americans (Obama carried 93%), according to CNN exit polls.
After Romney made the controversial claim that Obama won such constituencies by offering them policy "gifts" in an election year, Gingrich sharply fired back, describing those remarks as "nuts" and "insulting."
"The job of a political leader in part is to understand the people. If we can't offer a better future that is believable to more people, we're not going to win," Gingrich said November 18 on ABC.