The new revelation about FBI agent Peter Strzok comes as Republicans accuse him of being sympathetic to Clinton while seeking to undermine Donald Trump during the heat of the 2016 campaign season.

Strzok, who co-wrote what appears to be the first draft that formed the basis of the letter Comey sent to Congress, also supported reopening the Clinton investigation once the emails were discovered on disgraced former Rep. Anthony Weiner’s laptop, according to a source familiar with Strzok’s thinking. The day after Strzok sent his draft to his colleagues, Comey released the letter to Congress, reigniting the email controversy in the final days of the campaign.

Strzok did, however, harbor reservations about Comey making a public announcement just days before the election and sent a text message to that effect, two sources said. And Strzok’s text messages provided to Congress show him grappling with the fallout of making the letter public, according to a CNN review of his texts.