By James Oliphant and Brian Snyder CONCORD, New Hampshire (Reuters) -Republican presidential candidate Ron DeSantis offered a stinging rebuke of rival Donald Trump on Friday, arguing that Trump would attempt to “de-legitimize the results” if he loses in an early nominating state such as Iowa or New Hampshire next month. “If Trump loses, he will say it’s stolen no matter what, absolutely,” DeSantis said at a campaign event in Concord, New Hampshire. Video from the event was posted on social media by Fox News Digital. Former President Trump is heavily favored both in Iowa, which holds its Republ…