Donald Trump’s attacks against Chris Christie turned uglier than ever on Tuesday as the former president spoke at a rally in New Hampshire, the site of the second Republican statewide nominating contest. Mr Trump has long leaned on jabs aimed at making fun of the former New Jersey governor’s weight in Truth Social postings and other comments about his once-ally. But on Tuesday, America’s 45th president took the stage in front of cheering supporters and demeaned his combative primary opponent as a “fat pig”, while mockingly imitating an aide advising him against doing so. “Sir, please do not call him a fat pig,” said the twice-impeached former president, who is currently facing nearly 80 criminal charges in three indictments. It was an otherwise unnotable moment for Mr Trump that is, however, worth understanding as a revealing preview of his debate strategy should he eventually end up onstage with Mr Christie and his other GOP rivals like his former vice president, Mike Pence, later this summer and into the fall. The GOP debates are set to be the bloodiest televised fight for the former president in years, following a largely sleepy set of debates against now-President Joe Biden in 2020 and the tame performance, by comparison, of Hillary Clinton in 2016. There’s no indication that either Mr Trump or Mr Christie, who has made a name for himself in recent weeks with aggressive attacks of his own against his rival, will hold anything back should they come face-to-face in front of the cameras. And there are other Republicans who will be on that debate stage who have likely learned the lessons of 2016 and 2020 and plan to take on Mr Trump in his own commandeering manner, if only to avoid the fates of Jeb Bush and other Republicans who were bullied into submission by him in his first presidential run. Several Republicans including most prominently Mr Christie have attacked Mr Trump over his leadership and electoral track record, blaming him for poor GOP perfomances in the House and Senate. Mr Christie has also taken a sharp edge against the former president’s campaign to overturn the lawful results of the 2020 election, which has now resulted in four criminal charges against Mr Trump as well. Mr Christie and to a lesser extent other Republicans like Asa Hutchinson have argued that Mr Trump’s growing legal baggage makes him an untenable candidate for the GOP to field against an incumbent Democratic president, Joe Biden, in 2024. Read More Trump ramps up attacks on indictment at New Hampshire rally as lawyers ignore judge’s orders - latest Trump and Biden tied in hypothetical 2024 rematch, poll finds Trump rails against ‘bulls***’ charges in latest angry rant over indictment Judge rejects challenge to Ohio school district’s transgender bathroom policy Trump and Biden tied in hypothetical 2024 rematch, poll finds Who are the 2024 presidential election candidates? Meet the Republicans and Democrats campaigning