Gallup National Polls Poll: Hillary Clinton 45%, Barack Obama 47%.

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

Gallup National Polls Poll: Mike Huckabee 20%, John McCain 63%, Ron Paul 6%.

Texas Poll: Mike Huckabee 35%, John McCain 59%, Ron Paul 6%.

North Carolina Poll: Mike Huckabee 24%, John McCain 62%, Ron Paul 3%.

Ohio Poll: Mike Huckabee 37%, John McCain 57%, Ron Paul 6%.

Rhode Island Poll: Mike Huckabee 18%, John McCain 65%, Ron Paul 7%.

Vermont Poll: Mike Huckabee 9%, John McCain 73%, Ron Paul 11%.

Ohio Poll: Mike Huckabee 30%, John McCain 57%, Ron Paul 4%.

Rhode Island Poll: Hillary Clinton 52%, Barack Obama 40%.

Vermont Poll: Hillary Clinton 34%, Barack Obama 60%.

Ohio Poll: Hillary Clinton 48%, Barack Obama 40%.

Diageo National Polls Poll: Mike Huckabee 25%, John McCain 53%, Ron Paul 7%.

Ohio Poll: Hillary Clinton 50%, Barack Obama 43%.

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

Texas Poll: Hillary Clinton 48%, Barack Obama 47%.

Diageo National Polls Poll: Hillary Clinton 45%, Barack Obama 43%.

Texas Poll: Mike Huckabee 29%, John McCain 54%, Ron Paul 8%.

Gallup National Polls Poll: Mike Huckabee 22%, John McCain 62%, Ron Paul 5%.

Fox News National Polls Poll: Mike Huckabee 34%, John McCain 51%, Ron Paul 7%.