1. In what Democrats called the most damaging impeachment testimony yet, the top U.S. diplomat in Ukraine drew a “direct line” between President Trump’s withholding of security aid and his demand for investigations.

William Taylor told impeachment investigators on Capitol Hill that Mr. Trump held up the aid and refused a White House meeting with Ukraine’s leader until he agreed to investigate Mr. Trump’s political rivals, a Democratic lawmaker said. Here’s Mr. Taylor’s opening statement.

Earlier, Mr. Trump took to Twitter to denounce the impeachment inquiry as a “lynching.” The language sparked swift outrage among Democrats, particularly African-Americans, and even some Republicans expressed discomfort.