The House Intelligence Committee released new evidence related to the impeachment inquiry of President Donald Trump, including information turned over by Lev Parnas, an indicted former associate of Trump’s personal attorney Rudy Giuliani.

The material also includes a previously undisclosed May 2019 letter from Giuliani to Ukrainian President Volodymyr Zelensky. In the letter, Giuliani asked for a meeting with Zelensky as the former New York City mayor was pursuing investigations targeting former Vice President Joe Biden.

The transmission, which reflects the unfinished nature of the House’s impeachment inquiry, comes ahead of an expected House vote on Wednesday to formally send the impeachment articles to the Senate for a trial.