Women, African-Americans, Leftist Fools. That's a majority in many places in the USA. Majority wins.
Eventually, in 500 BC, and today, Democracy becomes the Tyranny of the Stupid; more charitably: the Ignorant. It starts when incumbents realize that they can reward their followers with benefits paid for by public funds.
PS, you forgot to mention that Landrieu is a useless administrator, dumber than the proverbial box'o'rocks, but smart enough to do exactly as she is told.
Rather half of the country.