Add to that high interest candidates and there is expected to be much higher voter participation.

If you want to vote in the Democrat primary on Tuesday, Feb. 19 there are things you need to know.

Step 1: Register to vote.

You do this by filling out the voter application with your personal information, sign and submit. Either online, in person or by mail. To find the voter registration application and other information click here.

Step 2: Register as a Democrat.

This is a completely separate form, not from the state but from Hawaii's Democratic Party. Right now, there are fewer than 20,000 registered Democrats in the state. You can register right up until the point of the vote. To find the Democratic registration form, click here.

"If you are not a registered voter and a registered democrat you will not be allowed to cast your vote," said Colleen Hanabusa, Senate President and Co-Chair of Hillary Clinton's Hawaii Campaign.

Step 3: Find your district and precinct.

You can find this by typing in your street and zip code on the Honolulu voter information Web site at this link.

This is important because the spot where you vote in the general election may be different from where you would vote on Feb. 19.

So once you know your voting district and precinct check the democratic Web page to find your specific polling place here.

Step 4: Show up at the correct place and time.

Your polling place will only be open for a limited time between 6:15 and 7:30 p.m. If you go to the wrong place at the wrong time your vote won't count.

"You've got to be there in order to vote, there is no absentee balloting and it's not the type of thing where you can take your lunch break off and vote. You must be present to vote and it's in the evening of the 19th only," said Schatz.

Step 5: Submit your vote.

Remember it is a caucus, essentially a party meeting so expect to hear democratic business, possibly even some campaigning before you write down your vote.

"People pass out a physical ballot and it’s a secret ballot and you fill it out and submit it and that's it," Schatz said.

Last presidential election about 4,000 Democrats voted in the primary. This time party leaders are expecting double if not triple that amount.

The republican primary is quite different. The average person will not be able to vote for the republican candidates in the primary process. That's because the party wrapped up its final caucus Tuesday in Honolulu.

Republicans picked representatives for Hawaii's convention, which will be held May 16 - 18 in Honolulu. That is when delegates will be chosen for the national convention in Minneapolis. Party leaders do expect a clear front runner by that time.

There are 20 Hawaii Republican delegates. For more information on the Hawaii Republican Party click here.