It wasn't a "single Congressman," it was a culture of contacts from the Democrats to their insiders at Twitter via the DNC, according to the dump.
It had become a systematized conduit to deny the free speech of opponents to Democrats.
-PJ
It was a political effort to make the Democrats look good and the Republicans look bad.
Exactly what any competent campaign would do.
And if you think the Republicans didn't have organized programs to influence the media - particularly conservative media - you're hopelessly naïve.
Not to mention that Twitter doesn't have the power to stop anyone from speaking.