Idaho Democratic Party leaders preparing for Tuesday's presidential caucuses are hoping for a repeat of 2008, when a record number of people participated. And signs suggest they might be on track.

Four of the state's most populated counties have had to make last-minute changes to accommodate the large crowds expected this evening.

State party spokesman Dean Ferguson says that's the kind of challenge the party likes to deal with.

The caucuses are open to anyone who is eligible to vote in the November general election and who didn't cast a ballot in this month's Republican primary. Caucus-goers will decide among four options: Hillary Clinton, Bernie Sanders, California businessman Rocky De La Fuente and uncommitted.

Idaho will send 27 delegates to the national nominating convention.

A handful of counties across Idaho have combined caucus locations because of expected low Democratic voter turnout east of the more liberal-leaning Ada County.

Democrats in Cassia County will caucus with Minidoka County at a hotel in Burley.

Meanwhile, in the heart of Republican-dominated eastern Idaho, Democrats in Clark County and Jefferson County will caucus together. Madison County will meet with Fremont County; Bear Lake County will meet with Caribou County; and Franklin County will gather with Oneida County.

For more information on where to go, visit here.

The Boise Democratic caucus is being held at the Boise Center on the Grove. Organizers emphasize interested voters need to arrive between 5 p.m. and 6 p.m.

Doors close at 7:00 p.m. and you will not be able to enter afterwards.

6 On Your Side will be live bringing you the latest results as they come in.