updated 9/19/2004 9:43:08 AM ET 2004-09-19T13:43:08

Here are presidential race results from battlegrounds states polled by Mason-Dixon Polling and Research for MSNBC, Knight-Ridder and in Nevada, the Las Vegas Review Journal.

These polls were conducted by Mason-Dixon Polling & Research, Inc. of Washington, D.C. from September 13 through September 14, 2004.  A total of 625 likely voters in each state were interviewed by telephone.

Those interviewed were selected by the random variation of the last four digits of telephone numbers.  A cross-section of exchanges was utilized in order to ensure an accurate reflection of the state.  Quotas were assigned to reflect voter turn-out by county.

The margin for error, according to standards customarily used by statisticians, is no more than plus or minus 4 percentage points. This means that there is a 95 percent probability that the "true" figure would fall within that range if the entire population were sampled.  The margin for error is higher for any subgroup, such as a gender or regional grouping.

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