Donald Trump’s nephew, Fred C. Trump III, on Tuesday endorsed Vice President Kamala Harris in her run for President, one week after an excerpt from his memoir was published alleging the ex-president told him twice it might be better if his disabled son would “die.” “I believe in policy over politics. And without question, Kamala Harris’ policies are what I get behind, so I will be voting for Kamala Harris,” Fred Trump III said Tuesday, endorsing Harris in an interview on ABC’s “The View.” “If I’m asked, I will campaign for her without hesitation,” he added (video below). In that excerpt of his…