The House Foreign Affairs Committee said Monday that a GOP congressional candidate who claimed to have the former U.S. ambassador to Ukraine under surveillance is not cooperating with the committee's requests for information.

Messages obtained by NBC News between the committee and Robert Hyde, a pro-Trump candidate for Congress in Connecticut, detail the committee's displeasure with Hyde's assertion in interviews that he had fully cooperated with the committee and claimed that significant gaps existed in records he provided to the committee.

Hyde's connections with Lev Parnas and other associates of Rudy Giuliani Rudy GiulianiGrand jury adds additional counts against Giuliani associates Lev Parnas and and Igor Fruman Juan Williams: Breaking down the debates Giuliani criticizes NYC leadership: 'They're killing this city' MORE, the president's lawyer and chief operative involved in his efforts to dig up dirt on his political opponents in Ukraine, were key to the now-shuttered impeachment inquiry targeting President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE.

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He is also now at the center of the Foreign Affairs committee's probe into the State Department's response to alleged threats against Marie Yovanovitch Marie YovanovitchGrand jury adds additional counts against Giuliani associates Lev Parnas and and Igor Fruman Strzok: Trump behaving like an authoritarian Powell backs Biden at convention as Democrats rip Trump on security MORE, the former U.S. ambassador to Ukraine seen by Trump allies as an obstacle into their efforts against former Vice President Joe Biden Joe BidenMomentum growing among Republicans for Supreme Court vote before Election Day Trump expects to nominate woman to replace Ginsburg next week Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral MORE (D) and his son Hunter Biden in Ukraine.

Text messages obtained by lawmakers found that Hyde provided Parnas with detailed information about Yovanovitch's whereabouts in Ukraine.

In the emails obtained by NBC, Hyde responds to the committee's requests for more information and demands that he be allowed to watch while investigators reviewed his electronic devices, citing alleged corruption in the FBI.

“I'm a nobody that has come from nothing and that loves his country. I'M NOT SURE HOW OR WHY I'M BEING USED IN THIS HOAX OR WHATEVER YOU CALL IT. But it's disgusting trying to set me up. I submitted everything I have,” Hyde wrote in one email.

“[I]t's starting to become apparent that you and the FBI is trying to set me up with false or fake evidence" aimed at hurting his congressional bid, Hyde added.

A spokesperson for the Foreign Affairs committee declined to comment to NBC on the messages.