Disgraced former CIA director David Petraeus has been tipped as the most likely replacement for Michael Flynn following the latter’s resignation as National Security Adviser.

Mr Flynn became the first major resignation from Donald Trump’s administration after it emerged that contrary to federal law, he spoke to Russian officials about sanctions and then attempted to cover up the conversations. His brief tenure in the role amounted to less than a month.

Mr Petraeus now appears poised to replace Mr Flynn. He is a well-known former military figure who came to prominence under the Obama administration. He led troops in Afghanistan before being appointed to the top position at the CIA.

However, Mr Petraeus’ career came to a dramatic end after he was forced to resign after a Justice Department investigation found that he had shared classified information with a woman with whom he was having an extra marital affair.

He plead guilty to the findings and subsequently served a probation period of two years, as well as paying a $100,000 fine. The probation period is to expire in April.

Sources say he is now tipped to be the most likely contender for the prominent role of National Security Adviser, in the now-vacant position, CNN reports.

If chosen by President Trump for the role, it is likely to be viewed by many as a controversial hire amid concerns Mr Petraeus’ past conduct renders him an unviable option for a key security role. Critics might contest the hire as at odds with President Trump’s pledge to “drain the swamp” of Washington, and potentially hypocritical in light of his vehement criticism of election rival Hillary Clinton’s use of a private email server, amid concerns that amounting to a security breach.

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Last year, then President-elect Trump reportedly considered Mr Petraeus for the role of Secretary of State, before ultimately giving the job to Rex Tillerson.