U.S. Senator Dale Bumpers, who served from 1975-1999, recently died. Bumpers had flirted with a bid for the Democratic Presidential nomination three times, but ultimately chose not to seek the nomination. Had he run in 1988, he would have been a good bet to win the Presidency.
Outliers who get elected are also usually the most electorally vulnerable in that they invariably represent states and Congressional districts inhospitable to their party's ideology. The Republican Party, once the liberal party is now the conservative Party.
For all the legacies that American politics has bequeathed to the world, one that rarely gets acclaim is its linguistic legacy. Many words that originated from American politics have permeated our general lexicon.