US President Donald Trump will take part in the upcoming third round of presidential debates despite the fact that the Commission on Presidential Debates has decided to change the rules allowing for the muting of microphones,

Trump campaign manager Bill Stepien said in a statement that the president “is committed to debating Joe Biden regardless of last-minute rule changes.” Stepien said the debates commission was “biased” and was trying to “provide an advantage to their favored candidate.”

Earlier on Monday, the commission issued a statement saying that Trump and his Democratic rival Joe Biden will have their microphones muted for parts of the upcoming presidential debate.

“Under the agreed upon debate rules, each candidate is to have two minutes of uninterrupted time to make remarks at the beginning of each 15 minute segment of the debate. These remarks are to be followed by a period of open discussion. The Commission is announcing today that in order to enforce this agreed upon rule, the only candidate whose microphone will be open during these two-minute periods is the candidate who has the floor under the rules. For the balance of each segment, which by design is intended to be dedicated to open discussion, both candidates’ microphones will be open,” the commission said.

The third – and last – debate between Trump and Biden is scheduled to take place in Nashville, Tennessee on Thursday.