<Li> Florida, 7.67% </Li> <Li> Indiana, 9.70% </Li> <P> This table shows the primary dates for regularly - scheduled elections . It also shows the type of primary . </P> <Ul> <Li> "Open" primary: any registered voter can vote in any party's primary </Li> <Li> "Closed" primary, only voters registered with a specific party can vote in that party's primary . </Li> <Li> "Top - two" primary, all candidates run against each other regardless of party affiliation, and the top two candidates advance to the second round of voting . (In Louisiana, a candidate can win the election by winning a majority of the vote in the first round .) </Li> <Li> All of the various other primary types are classified as "hybrid ." Alaska in 2008 provides one example of a hybrid primary: The Democratic Party allowed unaffiliated voters to vote in its primary, while the Republican Party only allowed party members to vote in its primary . </Li> </Ul>

How many democrats and republicans are there in the senate