The one-page document relates to a phone call that took place between Pence and Ukrainian President Volodymyr Zelensky a week before Zelensky met with President Trump at the United Nations.

This latest development is a win for House Democrats who have unsuccessfully pressed the White House to declassify the document, which Pence aide Jennifer Williams submitted to the House in late November to supplement her public testimony earlier that month.

supra
William, classified supp'l. Pence-Zelensky call (Sep 2019)