No denying, 2019 was a Year of Trump. His outsize personality, capricious decision making and tumultuous management style consistently put him center stage. The year’s news was capped by Mr. Trump’s becoming only the third president in history to be impeached by the House of Representatives. Alas, Ukraine and impeachment don’t lend themselves to charts, but much of the rest of Mr. Trump’s eventful year does.

Soaring Output of Rage and Self-Flattery

How the number of Trump tweets multiplied in 2019! The pace of the president’s tweets — invariably his favorite means of communication — accelerated sharply as he came under siege following the release of the Mueller report and the opening of the impeachment investigation. From a comparatively sluggish pace of six tweets a day early in Mr. Trump’s presidency, his Twitter finger became itchier and itchier, and is on track to reach a high of 40 per day just this month. His daily record: 123 — including 58 in a single hour — on Dec. 12, one day before the House voted for impeachment. All told, Mr. Trump’s more than 13,000 presidential tweets include more words than James Joyce wrote in “Ulysses.” More than half of the president’s tweets have been attacks, while about 2,000 have been praise for himself.