FEC filings show that the Trump campaign has disputed a payment of more than $766,700 to Fabrizio's polling firm, as the Washington Post first reported on Monday. The Trump campaign originally would not comment on the payment dispute. On Monday, Miller told the Post that it was "an administrative issue that we're resolving internally."
Fabrizio was the very first pollster hired by the Trump campaign. He was brought on in May at the recommendation of Paul Manafort. Several reports have suggested that Trump and members of his team were not entirely happy with Fabrizio and his warnings that Trump's campaign trail attacks hurt him in the polls.