Obama was up to his eyeballs in the conspiracy to depose Trump. From Jon Hall at fmshooter.com:
Between the 2016 election, Donald Trump’s historic upset win, and his inauguration in 2017, Michael Flynn – Trump’s then-National Security adviser – was unmasked nearly 50 times in foreign intelligence.
For comparison – in his entire career, even as head of the Defense Intelligence Agency, Flynn only requested once to have someone unmasked.
The FBI scrutinized and investigated Michael Flynn’s communications with Sergey Kislyak, who was ambassador to Russia and a target of U.S. surveillance.
Usually in foreign intel, any U.S. person is anonymously referred to in intelligence documents – being unmasked, however, means that Flynn was identified in Kislyak’s intercepted communications.