"Time after time, we lock arms, let out a yell, and send it down the hatch." 

Obama campaign spokesman Ben LaBolt was succinct when asked if the campaign was planning a similar celebration Tuesday night, after the primaries in Connecticut, Delaware, Pennsylvania, New York and Rhode Island. 

"No sir." 

This year, Obama's march to the nomination has generated little interest because he has no major primary challenger, no one who made the ballot in more than a handful of states. 

In Iowa, which gave Obama his first victory in January 2008, Democratic caucus-goers didn't even vote for president this year. Instead, they held rallies to fire up supporters for the general election. 

Democratic voters, however, are not unanimously behind the president. 

In Oklahoma, anti-abortion protestor Randall Terry, who founded Operation Rescue, got 18 percent of the vote in the Democratic presidential primary March 6.