On Wednesday, Senate Homeland Security Committee Chairman Ron Johnson announced that he would request top Obama admin officials to testify on how they sought to “unmask” communications by then-incoming National Security Advisor Michael Flynn.

In his statement for the media outlet, The Hill, Johnson confirmed that they are currently at the information-gathering phase, as the newly released evidence from the House Committee hearing had raised more questions than answers. To bring more clarity to the issue, the Committee chairman will request to interview individuals who might have helped in orchestrating Flynn’s “unmasking.”

The Republican explained, “I want to find out what you were looking at, why you unmasked an American’s identity, and how you used that.” Johnson noted that he would try to request interviews with former Director of National Intelligence Clapper, Obama Chief of Staff Denis McDonough, CIA Director Brennan, and even former Vice-President and presumptive Democratic nominee, Joe Biden.

The requests came after Director of National Intelligence Richard Grenell handed a declassified list of those who urged to “unmask” Flynn’s communication to Johnson and Sen. Chuck Grassley. The list of names includes US Ambassador to the UN Samatha Power, Director of National Intelligence James Clapper, Deputy Chief of Mission to Italy and Republic of San Marino Kelly Degnan (now Ambassador to Georgia), US Ambassador to Italy and the Republic of San Marino, John R. Phillips, CIA director John Brennan FBI Director James Comey, and even then-Vice President Joe Biden.

On his media appearance on ABC’s Good Morning America, Biden initially denied that he had any knowledge of the meeting, and the government’s plan to investigate Flynn. However, Biden later admitted that he knew that they had indeed “asked” for an investigation.

Even Republican Sen. Rand Paul urged the Democratic nominee to “come out of hibernation” and explain why they have sought to “unmask” Flynn. At Wednesday’s press conference, Paul criticized Biden’s action. He went on to publicly confront Biden on whether “eavesdropping” was a “legitimate function of government.”

Paul believed that Flynn had been treated poorly by a country, whom he had served for 33 years. The Republican senator believed that such actions were proof of the Obama administration’s “abuse of power.” Paul even went on to warn Americans that there is a strong possibility that Biden would repeat such actions if he is to win the upcoming 2020 general elections. Finally, Paul believed that Biden did “exactly” the same things that they have accused President Donald Trump of.

After three long years since the allegations against the so-called Russian collusion, the Department of Justice had finally dropped Flynn’s case. Despite having no hard evidence, Flynn was advised to plead guilty for making false statements to the FBI regarding his communication with Russian Ambassador Sergey Kislyak.

In January of 2017, then-President Barack Obama met with his top-ranking administration officials, including Yates, Comey, and Biden, to talk about the possible actions against Flynn, despite having little evidence of the said allegations.