The US Presidential Debate Committee caught the attention of Trump and Biden's decision to turn off microphones when the opponent spoke in the final "glove".

The final debate between US President Donald Trump and Democratic candidate Joe Biden will take place at 21:00 Eastern time on October 22 (8:00 am, October 23, Hanoi) in Nashville City, Tennessee,

The Presidential Debate Committee (CPD) on October 19 explained that turning off the microphone gives each candidate two minutes of uninterrupted speech, before moving to an open debate.

The decision was made after Trump repeatedly interrupted his opponents in the first debate on September 29.

Bill Stepien, Trump's campaign manager, said that it was "completely unacceptable" that an anonymous person was given the power to turn off candidates' mic.

In his letter to CPD, Stepien also objected to six selected topics, including Covid-19, American family, American ethnicity, climate change, national security, and leadership.

President Trump also criticized CPD earlier this month after it ordered a second debate online, stemming from the White House boss infected with nCoV.

"The commission's pro-Biden antics turned the entire debate season into failure and made the public lose faith in its objectivity," Trump's campaign said on October 19.

In fact, the US presidential candidates are not required to participate in the debate, as this activity is not regulated in the constitution or any law.

Live debates are a relatively new point in America's long running for president, coming at the same time as the rise of television.

The first presidential debate on television was held in 1960, between Richard Nixon and John Kennedy.

Debating activities on television only resumed since 1976, with a confrontation between Gerald Ford and Jimmy Carter.

The initial presidential debate was not led by the CPD, but by the Federation of Women Voters, one of America's oldest and most famous campaign groups, non-partisan.

In 1984, Frank Fahrenkopf, then president of the Republican National Committee, suggested that the priority should be given to Democrats and Republicans to sponsor presidential debates, because "the two major political parties should

As a result, the two American political parties increasingly gain control of debates from the Confederation of Women Voters, and top Washington politicians say it is time to end its role in the event.

The Commission is a non-profit agency, which claims not to accept any funding from governments or political groups.

CPD has the right to choose the time, place, format and moderator of presidential debates.

In addition to Ross Perot, the independent candidate in the 1992 campaign, the candidates outside the Democrats and Republicans almost never met the 15% support standard in the polls set by the CPD, to be sufficient.

Over the years, groups including the Green and Liberals have repeatedly introduced legal challenges against the CPD, arguing that Democrats and Republicans are being biased in the presidential debate.

Judges argue that CPD's partisan origins have faded over time and that the agency has become an independent entity, albeit under the control of Democrats and Republicans.

The CPD leadership currently consists of three co-chairs.

CPD CEO is Janet Brown, who has been in the role since the agency was founded in 1987. Members of the CPD include Democrats and Republicans, along with many journalists.