MANCHESTER, N.H. (AP) — With one primary contest over and another three days away, the Republican Party's leading presidential candidates will meet on the debate stage once again Saturday night — with a new sense of urgency. Trump makes his first appearance on the debate stage since skipping the last meeting over a dispute with Fox News. Yet he's not backing off a message focused on religious conservative values, which typically don't play well in New England. [...] based on the intensifying war of words with Trump, it's hard to imagine anything short of fireworks between the two leading candidates. [...] any major misstep could embolden one of his many mainstream rivals, who are desperate to score points with their own presidential aspirations on the line. A repeat performance in New Hampshire would make Rubio the overwhelming favorite of establishment Republicans — and spell a quick end for the others. The former Florida governor has struggled to connect with voters out of the gate, even though last year's $100 million fundraising haul has allowed him to stay viable.