CONCORD – Secretary of State Bill Gardner is predicting a record half-million voters will turn out for Tuesday's presidential primary.

Gardner is predicting 260,000 residents will vote in the Democratic primary and 240,000 will vote in the Republican primary.

He predicts that 150,000 undeclared voters -- who can choose which primary to vote in -- will cast votes. Of those, he thinks 90,000 will choose to vote in the Democratic primary and 60,000 in the Republican.

He predicts that 50,000 New Hampshire residents will register to vote on election day.

The previous record of 396,000 voters was set in the 2000 primary.