1. The White House declared war on the impeachment investigation, saying in a letter to House leaders that it would not cooperate.

“Your unprecedented actions have left the president with no choice,” said the eight-page letter signed by Pat Cipollone, the White House counsel. “President Trump and his administration cannot participate in your partisan and unconstitutional inquiry under these circumstances.” Read the entire letter here.

Mr. Trump called the inquiry into his efforts to pressure Ukraine to find dirt on his political rivals “a totally compromised kangaroo court,” and the White House intervened for the first time to block the testimony of a key witness.