https://www.vox.com/policy-and-politics/2017/5/10/15611252/comey-trump-russia-flynn-subpoenas-investigations-fbi-treasury
"Last night, CNN dropped a bombshell: Federal prosecutors issued grand jury subpoenas to colleagues close to Michael Flynn, Trump’s disgraced former national security adviser, asking for business records. This is a really big deal. The investigation into Flynn’s ties with Russia has been ongoing since July, but this is indicates the probe is picking up steam and that prosecutors may be growing more confident that there’s enough out there to build a criminal case against the disgraced retired general. The focus appears to be on Flynn’s business relationships with people in Russia and Turkey."
