(Washington, DC) -- Senator Ron Wyden is among lawmakers on Capitol Hill putting pressure on President Trump as he attempts to clarify what he did and didn't tell Russian President Vladimir Putin. During his joint press conference with Putin, Trump appeared to side with Putin's assurances that Russia didn't meddle in the 2016 election. Since then, he's walked back his statement and said he believes the intelligence community and holds Putin responsible. Wyden says the time for Trump to be strong with Putin was in Helsinki, not days later. Wyden adds that Trump has never been willing to take Putin on and that his credibility on the issue has shrunk to zero.