Comey was broadly criticized for his actions from both the right and the left. According to the Clinton campaign, the letters effectively stopped the campaign's momentum by hurting Clinton's chances with voters who were receptive to Trump's claims of a "rigged system". Polling authority Nate Silver commented on Twitter that Comey had a "large, measurable impact on the race." Other analysts, such as Democratic strategist David Axelrod, said that Comey's public actions were just one of several cumulative factors that cost Clinton the election. On May 2, 2017, Hillary Clinton told CNN's Christiane Amanpour: "I was on the way to winning until a combination of Jim Comey's letter on October 28 and Russian WikiLeaks raised doubts in the minds of people who were inclined to vote for me and got scared off." On May 3, 2017, Comey testified before the Senate Judiciary Committee hearing that it "makes me mildly nauseous to think that we might have had some impact on the election," but that "honestly, it wouldn't change the decision" to release the information.