Washington (CNN) Rep. Francis Rooney, a Florida Republican who appears open to impeaching President Donald Trump, said Sunday that what he's seen so far in the ongoing Trump-Ukraine scandal is "quite troubling."

CNN's Jake Tapper asked Rooney on "State of the Union" if House Speaker Nancy Pelosi hypothetically called a vote tomorrow to launch an impeachment inquiry, "How do you think you'd go?"

Rooney said he wasn't "100% sure right this second."

He added, "I want to hear what Ambassador (Bill) Taylor has to say Tuesday, and I'm hoping to have a chance to hear Ambassador (John) Bolton before any of that would happen, because what I've heard so far is quite troubling."

Rooney, a member of the House Foreign Affairs Committee at the center of the inquiry, said Friday that he had not yet come to a conclusion on whether the President committed a crime that compels his removal from office, a striking view among House Republicans defensive of Trump.

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