Ralph Nader was an independent presidential candidate who got some votes in 2000, where the democratic candidate was Al Gore and the republican candidate was George Bush Jr.

The election came down to an extremely close race in Florida. A recount was halted and Bush was given the presidency (partly because of deliberate sabotage on Bush's part, see the Brooks Brothers Riot) by the US supreme court.

Libs claim that Al Gore would have won Florida (and thus the presidency) if Nader hadn't ran. This ignores that there's no guarantee Nader voters would have voted for Gore instead of just not voting, or voting for Bush. They do this because they believe that america's institutions are functional and just, so any evidence to the contrary is blamed on individual bad actors, including the voter base. This belief in institutions is largely the result of propaganda, as it was and is transparently obvious that the country is rotten to the core and must be torn down.