Voters in seven states across the country will be picking a Democrat presidential nominee today in the biggest day of the 2004 campaign so far.

Primaries or caucuses open in Arizona, Delaware, Missouri, New Mexico, North Dakota, Oklahoma and South Carolina. The “Super Seven” as they are called are seen as more of a national test for candidates than the earlier votes in Iowa and New Hampshire.

Senator John Kerry won both those state contests and is seen as the front-runner to be selected to face President Bush in the presidential election in November. Polls suggest he is in the lead or very close in all seven states.

Democratic National Committee Chairman Terence McAuliffe has said he plans to urge every candidate who fails to win today to pack up. We’ll have more on this later in the show.