Rep. Adam Schiff, chairman of the House Intelligence Committee, hopes special counsel Robert Mueller’s Wednesday testimony in front of Congress will help the public understand how Russia affected the 2016 presidential election.

“I hope that where we are at this time tomorrow is with a better public understanding of the gravity of what the Russians did, the systemic nature of what the Russians did, and the gravity of what the Trump campaign did,” Schiff told a crowded room of reporters.