Veteran journalist Carl Bernstein issued a call to action for journalists ahead of President Trump’s meeting with Russia President Vladimir Putin in Finland on Monday, saying “we’ve got a huge amount of reporting to do,” and declared Trump’s “witch hunt” grievance against the federal Russia investigation to be proven false.

During a CNN panel on Sunday, Bernstein explained how he was encouraged by Deputy Attorney General Rod Rosenstein announcing on Friday that special counsel Robert Mueller indicted 12 Russian officials on charges of hacking Democrats’ computers during the 2016 campaign.