"This is does not constitute collusion", Stone said.
Stone was also outraged about U.S. Rep. Adam Schiff's questions at the hearing and allegations about him made by U.S. Sen. Members also asked about former adviser Carter Page who traveled to Russian Federation with the permission of Trump campaign officials.
The committee, now probing how Kremlin-linked adversaries targeted the US Democratic Party, highlighted in a testimony on 20 March a number of suspicious links between Stone, the whistleblowing platform WikiLeaks and Guccifer 2.0, a suspected Russian front.
"I'm anxious we're going to a place I don't want to go, which is commenting on any particular person", he said.
"I give you the same answer, sir", Comey replied.
During the hearing, Stone tweeted that he hopes to testify before the intelligence committee to respond to the "smears" and "half truths" he claims have been launched against him. Democrats are convinced that there is circumstantial evidence of wrongdoing in need of deeper investigation - including with Stone.
Schiff also asked if the Federal Bureau of Investigation director was aware of communications between Stone, Assange and his associates.
"I had no contact with Russians".
Representatives on both sides of the aisle have advocated for the investigation into Russian interference in the general election. "I don't think I should comment".
Asked about Stone at a White House briefing Monday, press secretary Sean Spicer acknowledged that Trump has known him for a long time but didn't believe the two had spoken "any time recently".
This was demanded after Stone admitted to having a number of "exchanges" with the mysterious Guccifer 2.0, who initial posed as a lone-wolf hacker before at least three separate cybersecurity firms concluded it was highly likely to be an account managed by the Russians.
One avenue of interest for the committee could be contacts Stone had with "Guccifer 2.0"- the online persona who claims responsibility for hacking the Democratic National Committee - which he characterized as an innocuous "brief exchange" of a few direct messages that he says amount to nothing. "I am willing to appear voluntarily if the committee isn't looking for the headline of issuing a subpoena", he said.