WASHINGTON (AP) — President Donald Trump is dismissing a claim by his former national security adviser that could play a major role in his impeachment trial as patently “false.” John Bolton writes in his forthcoming book that Trump told him that he wanted to withhold hundreds of millions of dollars in aid from Ukraine until it helped secure investigations into former Vice President Joe Biden. Trump and his legal team have repeatedly rejected that claim. A lawyer for acting White House chief of staff Mick Mulvaney slammed the allegations Monday as having “more to do with publicity than the truth.”