US President Donald Trump has said he wants an immediate trial in the Senate, after House Speaker Nancy Pelosi said she will not hand over the accountability process to the Senate before she knows how Republicans will manage it.

"After the Democrats did not give me proper procedures in the House of Representatives, attorneys, witnesses, or anything, they now want to dictate to the Senate how to conduct the trial," Trump said.

"I want an immediate trial !!"

Democrats in the United States demanded the Republican-controlled Senate on Thursday to summon senior aides to President Trump to testify in the trial that will take place after the charges are brought against Trump, as Democrats seek to focus the spotlight on the trial before the 2020 presidential elections.

A day after the Democratic-controlled House of Representatives charged Trump, Nancy Pelosi said she would not formally hand the charges over to the Senate before she knew how Senate Republican leader Mitch McConnell would administer the trial.

"We will be ready when we see what they have," she told a news conference.

Congressional aides said Pelosi was not expected to take action before the lawmakers return from the parliamentary end-of-year recess in early January.

McConnell apparently did not bother, as he said that the two sides had reached a dead end.

He said in the Senate, "I don't know what the point is in refraining from sending something we don't want."

The pursuit of accountability has further heightened the party divide in Washington, and polls show public opinion is deeply divided on ideological grounds as well.

One of the surprises came when Christianity Today, a prominent edition of the Evangelists, described Trump's behavior as "totally immoral" and said he should be removed.

Polls show evangelical Christians are among Trump's strongest supporters.

Trump denies wrongdoing and describes the investigation into his accountability, which Pelosi opened in September as a campaign of persecution.

A senior Democratic congressional aide said that Democrats want to allow McConnell senior Trump aides such as Mick Mulvani, Acting Chief of Staff to the White House, and John Bolton, Trump's former national security adviser, to testify at the trial.

Senate Democratic leader Chuck Schumer asked, "Is the president's position so weak that none of his men can defend him under oath?"

A Reuters / Ipsos poll published Thursday showed that less than half of Americans say President Trump should be removed from office after the House of Representatives charged him.