Pennsylvania Poll Released by Rasmussen Reports: Barack Obama 38%, Hillary Clinton 51%

Pennsylvania Poll: Hillary Clinton 51%, Barack Obama 38%.

Pennsylvania Poll Released by Strategic Vision: Barack Obama 38%, Hillary Clinton 56%

Pennsylvania Poll: Hillary Clinton 56%, Barack Obama 38%.

Pennsylvania Poll Released by Triad Strategies/Susquehanna Polling and Research (R): Barack Obama 31%, Hillary Clinton 45%

Pennsylvania Poll: Hillary Clinton 45%, Barack Obama 31%.

North Carolina Poll Released by Survey USA: Barack Obama 49%, Hillary Clinton 41%

North Carolina Poll: Hillary Clinton 41%, Barack Obama 49%.

North Carolina Poll Released by Rasmussen Reports: Barack Obama 47%, Hillary Clinton 40%

North Carolina Poll: Hillary Clinton 40%, Barack Obama 47%.

John McCain Leads National Poll Released by NBC News/Wall Street Journal Poll

NBC National Polls Poll: Mike Huckabee 0%, John McCain 45%, Ron Paul 0%.

National Poll Released by CNN/Opinion Research Corporation Poll: Barack Obama 52%, Hillary Clinton 45%

CNN National Polls Poll: Hillary Clinton 45%, Barack Obama 52%.

Mississippi Poll Released by American Research Group: Barack Obama 54%, Hillary Clinton 38%

Mississippi Poll: Hillary Clinton 38%, Barack Obama 54%.

Pennsylvania Poll Released by Insider Advantage/Majority Opinion Research: Barack Obama 36%, Hillary Clinton 55%

Pennsylvania Poll: Hillary Clinton 55%, Barack Obama 36%.

Florida Poll Released by Rasmussen Reports: Barack Obama 39%, Hillary Clinton 55%

Florida Poll: Hillary Clinton 55%, Barack Obama 39%.

Michigan Poll Released by Rasmussen Reports: Barack Obama 41%, Hillary Clinton 41%

Michigan Poll: Hillary Clinton 41%, Barack Obama 41%.

Mississippi Poll Released by Insider Advantage: Barack Obama 46%, Hillary Clinton 40%

Mississippi Poll: Hillary Clinton 40%, Barack Obama 46%.

Mississippi Poll Released by American Research Group: Barack Obama 58%, Hillary Clinton 34%

Mississippi Poll: Hillary Clinton 34%, Barack Obama 58%.

North Carolina Poll Released by Public Policy Polling: Barack Obama 47%, Hillary Clinton 43%

North Carolina Poll: Hillary Clinton 43%, Barack Obama 47%.

Pennsylvania Poll Released by Rasmussen Reports: Barack Obama 37%, Hillary Clinton 52%

Pennsylvania Poll: Hillary Clinton 52%, Barack Obama 37%.

Texas Poll Released by IVR Polls (IVRPolls.com): Barack Obama 46%, Hillary Clinton 49%

Texas Poll: Hillary Clinton 49%, Barack Obama 46%.

Texas Poll Released by WFAA / Belo Tracking Poll: Barack Obama 45%, Hillary Clinton 46%

Texas Poll: Hillary Clinton 46%, Barack Obama 45%.

Texas Poll Released by InsiderAdvantage/Majority Opinion Research: Barack Obama 44%, Hillary Clinton 49%

Texas Poll: Hillary Clinton 49%, Barack Obama 44%.

Texas Poll Released by Reuters/C Span/Houston Chronicle: Barack Obama 44%, Hillary Clinton 47%

Texas Poll: Hillary Clinton 47%, Barack Obama 44%.

Texas Poll Released by American Research Group: Barack Obama 47%, Hillary Clinton 50%

Texas Poll: Hillary Clinton 50%, Barack Obama 47%.