In Iowa, preliminary numbers showed that Democrats recorded a 12,000-voter advantage over Republicans, down from a 103,000-voter advantage four years ago.
"And, more importantly, he's not conceding the few counties where Democrats hold the registered-voter advantage".
The latest registration figures show Democrats with a 612,000-voter advantage over Republicans, up from about 466,000 before the 2008 primary, and 300,000 in 2006, a bright spot heading toward the general election.
Americans' disaffection with Washington continues unabated, but polls differs on whether that means a big "likely voter" advantage for Republicans.
Democrats now have a 4,564 voter advantage among registered voters — a single percentage point lead — while about a fifth of voters in the district have no party preference, according to the secretary of state.
House called Costilla County a "good example," of the problems with the state Republican Party, but he went on to say Republicans aren't capitalizing on their voter advantage over Democrats and empowering state counties to be "franchises" of the state party.
An estimated 2m council home owners, many of them traditional Labour voters, took advantage of the scheme.
In late March, the Battleground Poll showed Mr. Lugar leading Mr. Mourdock 42 percent to 35 percent among likely primary voters, an advantage that was within the poll's margin of sampling error of plus or minus five points.
A1 Early Voting Begins More than 15percentt of the vote this year might be cast before Election Day as voters take advantage of early voting procedures that have swept across states and counties over the last 15 years.
