Republican presidential candidate Newt Gingrich once led his rivals for the nomination in polls. Today, he's millions in debt and describing Mitt Romney as "far and away the most likely" GOP nominee.
Running for president "turned out to be much harder than I thought it would be," he said Sunday.
"I do think there's a desire for a more idea-oriented Republican Party, but that doesn't translate necessarily to being able to take on the Romney machine," Gingrich told "Fox News Sunday" in a reflective interview.
After his Jan. 21 victory in the South Carolina primary, the former House Speaker said the Florida primary he...