The US President Donald Trump said on Twitter that the presidential debate should be postponed due to the fact that in certain cases, voting in the presidential elections by mail may begin before the debate of candidates.
Debate among candidates for the presidency is due to take place on September 29 in Cleveland, Ohio.
The US President Donald Trump is running for a second Republican term. Joe Biden is seen as the main opponent of the incumbent Democratic president.
The US presidential election will be held on November 3.