Hillary Clinton's campaign has a video that claims, "Exercising is hard... Caucusing easy. Dancing is hard... Caucusing is easy."

To that we say, if it were really that easy would we be here to explain it? And, with that in mind, let's take a look at how peer pressure, baked goods and mob mentality all help chose the next president.

We'll use the Democrat's system as the example. Voters will show up at one of more than 35 hundred caucus precincts Thursday evening around 6:30.

Voters meet at the same places they vote - churches, schools, community centers. They don't have to be registered with the party to go, but do have to register there.

The doors will close at 7 p.m. and the caucusing will begin. There are no close-curtained booths. The room has different gatherings for each candidate. One example uses animals rather than actual candidates. Voters go to the area for their candidate. Officials count the number of voters in each corner.

Any candidate with less than 15 percent of the voters present is a goner. His or her voters then have a choice: pick another candidate still in the running or leave.

For the next half-hour people use pretty much every trick in the book, such as political reasoning, emotional pleas - even cookies and punch to bring the floating voters into their candidates camp.

At about 8 p.m., everyone has chosen a new spot and another count begins. Once again, candidates with less than 15 percent get the ax. The process continues until all remaining candidates have at least 15 percent of the support.

To end the evening, candidates take delegates based on their relative strength in the room.

Republicans have a similar process, but they use a secret ballot and don't have a 15 percent threshold.

Missouri is actually no stranger to caucusing. It's the system the state used for most of its existence.

The Show-Me State only first had a primary vote for the 1988 election. And it officially moved to a primary prior to 2000.