WASHINGTON (AP) — House Speaker Nancy Pelosi said Thursday she knows ’’exactly when” she’ll be transmitting the articles of impeachment against President Donald Trump, brushing back Democratic comments that the time has come to start the Senate trial.

Pelosi told reporters at the Capitol she had no concerns about the anxiety some House and Senate Democrats are showing over the standoff with Senate Majority Leader Mitch McConnell about the terms of the delayed trial. It’s now more than three weeks since the House impeached Trump on charges of abuse and obstruction.

“Same thing I’ve said before,” Pelosi told The Associated Press as she entered the Capitol. “We’d like to see how we’re going to proceed, and then we’ll know who to send. I have an obligation to my members, especially those on the committees, to do justice to their work.”

Asked later as she headed for a morning meeting if she had any concerns about losing support from Democrats for her strategy, she said: “No.”

Pelosi told reporters, “I know exactly when” she plans to send the impeachment articles over, but, “I won’t be telling you right now.″

One top lawmaker, Rep. Adam Smith, D-Wash., the chairman of the House Armed Services Committee, told CNN on Thursday “it’s time” to send over the charges. But shortly afterward, he tweeted that he misspoke: “If the Speaker believes that holding on to the articles for a longer time will help force a fair trial in the Senate, then I wholeheartedly support that decision.”

McConnell, who met with Trump late Wednesday at the White House, suggested last month it would be “fine with me” if the House never sent the articles. More recently, he has drawn on the Constitution’s intent for the Senate to have the ultimate say on matters of impeachment. He scoffed that Pelosi has ‘’managed to do the impossible” by uniting Democrats and Republicans who want the trial to begin.

“There will be no haggling with the House over Senate procedure,” McConnell, R-Ky., said Wednesday before meeting with Trump at the White House. “We will not cede our authority to try this impeachment. The House Democrats’ turn is over.”

Trump tweeted Thursday that “Pelosi doesn’t want to hand over The Articles of Impeachment, which were fraudulently produced by corrupt politicians like Shifty Schiff in the first place, because after all of these years of investigations and persecution, they show no crimes and are a joke and a scam!” Rep. Adam Schiff, D-Calif., led the House impeachment inquiry.

Three weeks have passed since the House impeached Trump on the charge that he abused the power of his office by pressuring Ukraine’s new leader to investigate Democrats, using as leverage $400 million in military assistance for the U.S. ally as it counters Russia at its border. Trump insists he did nothing wrong, but his defiance of the House Democrats’ investigation led to an additional charge of obstruction of Congress.

Senators from both sides are eager to serve as jurors for Trump’s day in court. The trial will be conducted in the Senate, where Republicans have a thin majority.

The impeachment timeline is complicating the political calendar, with the weekslong trial now expected to bump into presidential primaries. Several Democratic senators are running for the party nomination.

Returning to Washington from the campaign trail, Sen. Elizabeth Warren, D-Mass., told reporters she was confident in Pelosi’s plan.

“I have no doubt that she will get this right,” Warren said. ”Some things are more important than politics, and the impeachment of a president is certainly one of those. No one is above the law, not even the president.”