Joe Biden used several email aliases to regularly correspond with Hunter Biden’s business partner in recent years, including while he was serving as vice president, a GOP-controlled House committee leading the Republican impeachment inquiry revealed Tuesday.

IRS whistleblowers Joseph Ziegler and Gary Shapley provided the eleven-page log of emails ahead of a closed-door hearing before the House Ways and Means Committee on Tuesday. The document includes metadata associated with emails sent to and from Joe Biden’s alias email addresses from 2010 to 2019, though it does not include the content of those emails.

In total, Joe Biden exchanged 327 emails with Hunter Biden’s business partner, Eric Schwerin, the founding partner and managing director of Hunter’s defunct Rosemont Seneca Partners investment firm. Fifty-four of those emails were sent directly to Schwerin, while the rest included other parties. Out of the 327 emails logged in the document, 291 were sent during Joe Biden’s Vice Presidency. Joe Biden’s email aliases included “robinware456,” “JRBware” and “RobertLPeters.”