Traitorfish
The Tighnahulish Kid
How far from the centre? Even candidates in gerrymandered seats still have to win primaries, then elections, so even with a favourable electoral they're still trying to assemble an electoral majority. The beneficiaries of gerrymandering are almost invariably the entrenched party leadership, who by dint of being an entrenched leadership do not tend to be very radical.Gerrymandered safe seats produce primary battles increasingly in favor of 'purists' further from the center. I'm not sure how we can measure moderation or extremism in Congress without considering partisanship. Maybe the number and nature of laws passed by Congress would help but greater partisanship does indicate movement toward the extremes.
Or do you imagine that Boss Tweed was the most dangerous radical in the history of the United States?