Senate Judiciary Committee Chairman Chuck Grassley Charles (Chuck) Ernest GrassleySenate Republicans signal openness to working with Biden Senators offer disaster tax relief bill Trump spikes political football with return of Big Ten season MORE (R-Iowa) on Wednesday said federal law enforcement officials were withholding information in his committee's probe of ties between Donald Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE's presidential campaign and Russia.

Grassley was asked by The Washington Post whether FBI Director James Comey gave his panel the same information he gave the Senate Intelligence Committee.

“Every time they come up here for their nomination hearing and I ask them are you going to answer phone calls and our letters and are you going to give us the documents you want? And every time we get a real positive yes! And then they end up being liars!” Grassley responded.

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“It’s not if they’re treating us differently than another committee. It’s if they’re responding at all.”

Comey on Wednesday is set to meet with top members of the Senate Judiciary Committee amid demands that the bureau say if it is investigating ties between Moscow and the Trump campaign.