But first let me introduce these two,
The modern political party system in the U.S. is a two-party system dominated by the Democratic Party and the Republican Party. These two parties have won every United States presidential election since 1852 and have controlled the United States Congress to some extent since at least 1856. Historically, there have been few instances in which third party candidates won an election or even had representatives in the senate. In fact among the 57 presidential elections in America the last 36 where won by one of those parties and for the first 10 ones these parties didn’t exist yet. In total 21 times for democrats and 22 republicans. Regarding the last 100 years: