Democratic National Committee Chairman Tom Perez on Thursday brushed off a claim from former DNC Chairwoman Donna Brazile, who wrote that Hillary Clinton’s campaign completely co-opted the DNC in the run-up to the 2016 election.

Brazile said Clinton’s move looked “unethical” to her, as it gave Clinton full control over DNC hiring decisions, to the likely detriment of Sen. Bernie Sanders, who was trying to win the nomination over Clinton.