WASHINGTON: There may be much Republican hand-wringing over Donald Trump’s presumptive nomination to face the Democratic candidate for the White House, but the boastful billionaire says he doesn’t care, and it doesn’t matter. A growing chorus of senior Republican leaders have joined the “anyone but Trump movement,” including 2012 Republican presidential nominee Mitt Romney and the last two Republican presidents, George W. Bush and George H.W. Bush. “Does it have to be unified?” Trump asked about the Republican Party. “I’m very different than everybody else, perhaps, that’s ever run for office. I actually don’t think so,” he told ABC’s “This Week” in excerpts provided ahead of Sunday’s broadcast. “I think it would be better if it were unified, I think it would be – there would be something good about it. But I don’t think it actually has to be unified in the traditional sense.” A group of conservatives opposed to Trump’s candidacy, meanwhile, announced it had launched a “formal effort” for an alternative candidate, though it stopped short of backing a contender from a third party. “This is not just a fight for the heart and soul of the Republican Party; it is a battle for the future of our country,” Conservatives Against Trump said in a statement.