In caucus states, most state parties use a two pronged process. A straw poll, often called a "presidential preference poll", is conducted of the attendees at the caucus. The results are released to the media and published on the state party website. Delegates are then elected to the county conventions. It is at the county conventions that delegates are elected to state conventions, and from the state convention to the national convention. At each level, delegates may be bound or unbound to a candidate. If unbound, delegates are not obligated to follow the results of the presidential preference poll. Thus, all estimates of delegates from caucus states are dependent on state party by-laws.