Appeals court judges appeared to question the legitimacy of the civil fraud case against Donald Trump as the former president urged the court Thursday to overturn a judgment against him that has ballooned, with interest, to more than $478 million.In February, a Manhattan trial judge found that Trump and other defendants — including his adult sons, Don Jr. and Eric, along with several business associates — fraudulently inflated his net worth and the value of his real estate properties to obtain favorable rates from banks and insurers. The nearly half-billion-dollar penalty ordered by the trial judge initially threatened to trigger...