Donald Trump’s niece on Wednesday provided some insider family information on how the former president might react to recent statements by Letitia James, who prosecuted the fraud case in which he was ordered to pay hundreds of millions of dollars. Mary Trump outlined a number of recent developments that could hurt her ex-president relative, including James suggesting Trump wouldn’t be successful in appealing the case. But what really got his goat, according to Mary Trump, is James’ suggestion that her office “will seek judgment enforcement mechanisms in court, and we will ask the judge to seiz…