Facts.
1. The Russians directly intervened in the 2016 election through propaganda, hacked e mails, and breachs of state voting systems;
2. The Russians did this to try to help elect Donald Trump POTUS;
3. The Trump campaign took a meeting with the Russians when they were promised dirt on Hillary Clinton from the Russian govt;
4. The Russian govt had dirt on Hillary Clinton consisting mainly of the hacked emails;
5. After the meeting the hacked e mails were made public;
6. There were other contacts between the Trump campaign and reps of the Russian govt including but not limited to George Papadopoulos, Carter Page, Michael Flynn, and Jeff Sessions.
7. After the election, Michael Flynn was already working on and communicating with the Russians about lifting sanctions even before the inauguration in violation of the law.
These facts alone cry out for an investigation of whether the Trump campaign had knowledge of and agreed to the Russian help. If they did, it was traitorous.