Electoral College: A small group of people (electors) can override the popular vote.
Senate: Empowers minorities through malapportionment.
Supreme Court.
Gerrymandering.
Filibuster: Requires 60 votes to pass legislation in the Senate.
Justification: Protection against tyranny of the majority.
Levitsky and Ziblatt: Historically, the filibuster has often been used to block minority rights.