Trump, who has scarcely mentioned the pandemic in recent days even as infections reached record heights, remained fixated on his defeat in this month's election.
Trump said US intelligence agencies were still studying the evidence around Khashoggi's murder inside the Saudi consulate in Istanbul on Oct 2, and who planned it. Since the murder, Trump has taken varying positions on how to react, including possible sanctions.
Trump's decision to withdraw US troops in Syria was one of the reasons that led to the resignation of Defense Secretary James Mattis on Thursday, according to media reports.
Trump said Wednesday during an interview with the Wall Street Journal that China is not currency manipulator, reversing his tune voiced in the presidential campaign, blaming Beijing for intentionally keeping its currency low to gain competitiveness in exports.
Trump told supporters in Montana on Thursday that Republicans needed to maintain control of Congress to stave off possible impeachment proceedings against him, although Democrats have played down any discussion of that approach.
Trump will come face-to-face with them at the gathering in Charlevoix, Quebec.
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Trump on Friday ordered the FBI to carry out an investigation lasting up to a week of the allegations against Kavanaugh, acting on a request from Senate Republican leaders who were pressed by moderate senators in Trump's own party.
Trump said on Wednesday night in a televised appearance from the Oval Office that he was suspending most travel from Europe for 30 days, beginning on Friday, and imposed a 30-day ban on foreigners who in the previous two weeks have been in the 26 countries that make up Europe's Schengen Area.
Trump was to have been joined in Erie, Pennsylvania, by first lady Melania Trump, but her chief of staff said she has a lingering cough and wouldn't accompany him. It would have been her first public appearance since she and the president were sickened with the novel coronavirus.
Trump on Thursday signaled optimism, unveiling a letter from Kim in which the top leader hailed the "start of a meaningful journey" and tweeting "Great progress being made!"