Hillary Clinton
Hillary Clinton holds up a Donald Trump brand tie (R) made in China and a U.S. made Knotty Tie made by the company in Denver August 3, 2016. Reuters/Rick Wilking

Former Secretary of State Hillary Clinton has taken to Twitter to share her views regarding the resignation of Michael Flynn, US President Donald Trump's former national security adviser. Clinton retweeted Philippe Reines’s post and added her own commentary.

“Philippe's got his own way of saying things, but he has a point about the real consequences of fake news,” she wrote on Valentine’s Day. Reines, a former aide of Clinton, has earlier tweeted his thoughts about Flynn’s resignation.

"What goes around COMETS around," Reines wrote. He was referencing a false conspiracy theory that Comet Ping Pong was harbouring a child sex abuse ring run by the 2016 Democratic presidential candidate. Reines has worked for Clinton in both the Senate and State Department.

During the 2016 presidential campaign, Flynn has been vocal of criticising Clinton's private email server. He even joined the crowd's chant of "lock her up" at the Republican National Convention.

The resignation of the 33-year-old took place following reports that he had misled White House officials about conversations he had had with the Russian ambassador to the United States. In his resignation letter, he “sincerely apologised” for his account and blamed how the events went fast.

Flynn had allegedly discussed sanctions imposed on Russia with the Russian envoy and hinted that the US president would be willing to lift them. That may have put Flynn in violation of the Logan Act, a law that bans people outside the executive branch from making foreign policy on behalf of the US administration.

Senate Majority Leader Mitch McConnell believes that it is "highly likely" the Senate intelligence committee will investigate Flynn's conversation with the Russian envoy. "As Senator (Roy) Blunt has already indicated, it is highly likely they will want to take look at this episode as well. They have the broad jurisdiction to do it,” he said.

Senator Lindsey Graham also wants Flynn's conversations with a Russian ambassador about sanctions to be investigated. "I think Congress needs to be informed of what actually Gen Flynn said to the Russian ambassador about lifting sanctions," he said.

Senator Bill Cassidy, a Louisiana Republican, said Vice President Mike Pence thanked Flynn for his service. Cassidy shared that Pence told Flynn that "when discrepancies arose, they realised they had to do something."

Pence told senators they are considering three individuals that could potentially replace Flynn. Senator John McCain suggested the Trump administration consider David Petraeus or Stanley McChrystal to take on the vacant role.