1. House leaders threatened to subpoena the White House if it did not hand over a broad range of records related to the impeachment inquiry by Friday.

Speaker Nancy Pelosi and Representative Adam Schiff warned that any attempt to stonewall the House’s request or intimidate witnesses would be construed as obstruction worthy of impeachment itself.

President Trump responded with a series of angry outbursts. In an uncomfortable Oval Office meeting with the president of Finland, Mr. Trump declared that Democrats were “guilty as hell” of corrupting the 2016 election, that former Vice President Joe Biden was “corrupt” and “less smart now than he ever was,” and that a C.I.A. whistle-blower was “a spy in my opinion.”