The President and Vice-President are elected every four years. To take part for the presidential election there are some qualifications have to be met; you must be a national of the United States, at least 35 years old and must have lived in the U.S for at least 14 years. The primary Election is a method of candidate selection, which is being used when the two main parties Democrats and Republicans have to find their candidates for president. .
The method is additionally being used to finding candidates for the House and Senate and by the governor election. The rules for primaries are different in each state. An example is if two people want to be candidates for the Democratic candidates for president, each state holds a primary election, where you vote on the desired candidate. In most states is it the voters who are registered as Democratic voters, who are allowed to vote on the candidates but in some states are the election open, where both the Democratic and Republican can vote. Voters can always participate in any party's primary election. If a majority of electors do not vote for a President, the House of Representatives chooses the President; if a majority of electors do not vote for Vice-President, the Senate votes.
The Presidential Elections are called Super Tuesday, because it occurs quadrennial on Election Day, which has been Tuesday after the first Monday in November since 1845. Super Tuesday takes only place in the years of presidential election. On Super Tuesday about half of the delegates, who decide which candidate, who should be nominated for respectively the Democrats and the Republicans, are chosen – as is also evident from the above. This year 2016, The American Presidential Election takes place Tuesday the 8th of November. The incumbent president, Barack Obama, can accord the constitution not run for the election because he already has spent two periods of four years.