Ukrainian President Volodymyr Zelensky said Tuesday that he has never personally spoken with Rudy Giuliani Rudy GiulianiThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting CIA found Putin 'probably directing' campaign against Biden: report Democrats fear Russia interference could spoil bid to retake Senate MORE, President Trump's personal attorney who has pushed for Ukraine to investigate former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE.

“I have never met Rudy Giuliani. Never. And never had any phone calls with him,” Zelensky told reporters in Kiev while speaking in English, Bloomberg reports.

Zelensky also reiterated that he was not under pressure from Trump to investigate Biden following a call between the two leaders in late July, according to Bloomberg.

Ukraine President Volodymyr Zelensky: "I've never met Rudy Giuliani. Never. And never had any phone calls with him." pic.twitter.com/0pA90dUokF — The Hill (@thehill) October 1, 2019

A partial memo of the July 25 discussion released by the White House last week shows Trump asking Zelensky to investigate Biden, a top political rival who is a leading candidate in the Democratic presidential race. ADVERTISEMENT

“I want to tell you that I never feel any pressure and there are very many people in the west and in Ukraine who would like to influence me,” Zelensky said Tuesday, according to Bloomberg. “But I am a president of independent Ukraine and I think that, and I hope my steps demonstrate this, that it is impossible to influence me.”

A declassified whistleblower complaint released last week alleges that Trump pressured Zelensky to “meet or speak with” Giuliani and Attorney General William Barr Bill BarrFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Why a backdoor to encrypted data is detrimental to cybersecurity and data integrity FBI official who worked with Mueller raised doubts about Russia investigation MORE. The whistleblower complaint cited details from Trump's call with Zelensky in July.

House Democrats have seized on Trump's call and his attorney's push for Ukraine to investigate Biden, saying the move amounts to soliciting foreign help to interfere in the 2020 election and arguing that it bolsters their case for impeachment.

The House launched a formal impeachment inquiry into Trump last week amid the whistleblower’s allegations against Trump and reports that White House officials pushed for a transcript of the call to be put on a highly classified server.

House Democrats subpoenaed Giuliani on Monday related to the administration’s interactions with Ukraine.

Giuliani wouldn’t say if he would comply with the subpoena.

The subpoena, which was signed by Oversight Committee Chairman Elijah Cummings Elijah Eugene CummingsBlack GOP candidate accuses Behar of wearing black face in heated interview Overnight Health Care: US won't join global coronavirus vaccine initiative | Federal panel lays out initial priorities for COVID-19 vaccine distribution | NIH panel: 'Insufficient data' to show treatment touted by Trump works House Oversight Democrats to subpoena AbbVie in drug pricing probe MORE (D-Md.) and Foreign Affairs Committee Chairman Eliot Engel Eliot Lance EngelHouse panel halts contempt proceedings against Pompeo after documents turned over Engel subpoenas US global media chief Michael Pack The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Pence lauds Harris as 'experienced debater'; Trump, Biden diverge over debate prep MORE (D-N.Y.), demanded Giuliani respond by Oct. 15.

The chairmen warned that failure or refusal to comply with the subpoena “shall constitute evidence of obstruction of the House's impeachment inquiry.”