Donald Trump is palling around with a far-right firebrand, Laura Loomer, known for spreading conspiracy theories — and it’s left an ex-aide of his incredulous. The co-hosts of “The View” were flabbergasted that he was joined by the controversial figure at ceremonies marking the 9/11 attacks in New York — and on Friday wondered how a presidential candidate could incorporate someone like that into his campaign. Sara Haines said that one of the major concerns about a second Trump term is the extremism outlined in “Project 2025,” as well as the people willing to work for him such as Loomer, Steve …