A key that may unlock Trump's direct involvement in Russian interference is a phone call between Don Jr and mystery blocked number in setting up Trump Tower meeting.
Now Dems hold subpoena power.
Recall this:
thehill.com/policy/nationa…
(analysis includes subpoena for the phone records, larger items like Russia money laundering, and more)
justsecurity.org/61409/russia-i…
"House of Trump, House of Putin: The Untold Story of Donald Trump and the Russian Mafia"
penguinrandomhouse.com/books/576474/h…