Chief Justice John Roberts delivered a sharp rebuke to both House managers and lawyers for President Donald Trump for their decorum as the impeachment trial debate passed 1am on Wednesday, a marathon session that turned heated between the legal teams.

After several days of serving in a largely passive role overseeing the trial, Roberts interjected after a particularly pointed exchange between House Judiciary Committee Chairman Jerrold Nadler, D-N.Y., and two lawyers for Trump, Pat Cipollone and Jay Sekulow.

"I think it is appropriate at this point for me to admonish both the House managers and president's counsel in equal terms to remember that they are addressing the world's greatest deliberative body," Roberts said.

Nadler delivered an extended statement attacking the president and calling on the Senate to subpoena testimony from former national security adviser John Bolton. Cipollone responded by saying the New York congressman "should be ashamed . . . for the way you addressed this body."

"It's about time we bring this power trip in for a landing," Cipollone said, prompting Sen. Ron Johnson, R-Wis., to chuckle. "It's a farce . . . Mr. Nadler, you owe an apology to the president of the United States and his family, you owe an apology to the Senate, but most of all, you owe an apology to the American people."

All the president's lawyers: The team fighting Trump's impeachment Show all 6 1 /6 All the president's lawyers: The team fighting Trump's impeachment All the president's lawyers: The team fighting Trump's impeachment Alan Dershowitz Dershowitz is a controversial American lawyer best known for the high-profile clients he has successfully defended. Those clients have included OJ Simpson, Jeffrey Epstein and Harvey Weinstein. One longtime Harvard Law associated told the New Yorker Dershowitz "revels in taking positions that ultimately are not just controversial but pretty close to indefensible." Getty All the president's lawyers: The team fighting Trump's impeachment Ken Starr Starr became a household name in the 1990s as the independent counsel who led the investigation that led to Bill Clinton's impeachment. That investigation began as a look into a real estate scandal known as Whitewater, and eventually led to impeachment after Mr Clinton lied under oath about having an affair with White House intern Monica Lewinsky. AP All the president's lawyers: The team fighting Trump's impeachment Jay Sekulow Sekulow is the president's longtime personal attorney, and, now, personal lawyer in the White House. He has been accused by former Rudy Giuliani associate Lev Parnas of being "in the loop" during the Ukraine scandal. Getty All the president's lawyers: The team fighting Trump's impeachment Pam Bondi Bondi is the former attorney general in Florida, and a longtime backer of the president's. She made a name for herself in Florida for taking hyper partisan stances on issues, and her penchant for publicity. She is likely to be a prominent public-facing figure during the trial. AFP/Getty All the president's lawyers: The team fighting Trump's impeachment Pat Cipollone Cipollone is the White House counsel, and leading the president's defence team. Getty All the president's lawyers: The team fighting Trump's impeachment Rudy Giuliani While not officially named as one of the president's impeachment lawyers, it is hard to ignore Giuliani's outsized role in this process. The former mayor of New York has been making headlines for months as he defends his client, and for his apparent role in the effort to compel Ukraine to launch the investigation into Joe Biden. We'll see how he figures in the actual trial, which he has said he would like to be a part of. Reuters

Sekulow followed Cipollone and went a step further in his words and tone.

"The Senate is not on trial," he almost shouted.

During these remarks, Nadler did not meet Sekulow's gaze. As the White House counsel concluded, he returned to his table and threw down his papers in disgust.

The tensions rose further as Nadler responded, calling Cipollone a liar in one case. Cipollone shook his head, along with several Republican senators.

The exchange occurred as the Senate dealt with another Democratic amendment to the resolution, offered by Senate Majority Leader Mitch McConnell, R-Ky., to set the guidelines for the trial and whether additional witnesses or documents need to be produced.

Republicans have refused to consider the witness question until both legal teams present their cases in the coming days, but Democrats have used the impeachment rules to force votes on the issue before either side formally presents its case.

As happened with every Democratic amendment offered, including this one to subpoena Bolton, the Senate rejected the request, 53 to 47, entirely along party lines.

Roberts, before calling for that vote, delivered his admonition to the lawyers. He recounted a 1905 impeachment trial of a federal judge, when a House manager was admonished for using the phrase "pettifogging."

"I don't think we need to aspire to that high of standard, but I do think those addressing the Senate should remember where they are," Roberts said.