Barack Obama Leads Alabama Poll Released by InsiderAdvantage / Majority Opinion Research

Alabama Poll: Hillary Clinton 44%, Barack Obama 45%.

Barack Obama Leads Alabama Poll Released by Survey USA

Alabama Poll: Hillary Clinton 47%, Barack Obama 49%.

Barack Obama Leads National Poll Released by Cook Political Report/RT Strategies Poll

Cook Political Report National Polls Poll: Hillary Clinton 37%, Barack Obama 43%.

John McCain Leads Missouri Poll Released by Reuters/C SPAN/Zogby tracking poll

Missouri Poll: Mitt Romney 24%, Mike Huckabee 27%, John McCain 35%, Ron Paul 5%.

John McCain Leads New Jersey Poll Released by Quinnipiac University poll

New Jersey Poll: Mitt Romney 30%, Mike Huckabee 6%, John McCain 52%, Ron Paul 6%.

John McCain Leads New Jersey Poll Released by Strategic Vision

New Jersey Poll: Mitt Romney 25%, Mike Huckabee 10%, John McCain 55%, Ron Paul 4%.

John McCain Leads New Jersey Poll Released by Reuters/C SPAN/Zogby tracking poll

New Jersey Poll: Mitt Romney 26%, Mike Huckabee 7%, John McCain 52%, Ron Paul 4%.

John McCain Leads Georgia Poll Released by Strategic Vision

Georgia Poll: Mitt Romney 29%, Mike Huckabee 26%, John McCain 31%, Ron Paul 5%.

John McCain Leads New York Poll Released by Quinnipiac University poll

New York Poll: Mitt Romney 22%, Mike Huckabee 9%, John McCain 54%, Ron Paul 5%.

John McCain Leads New York Poll Released by Reuters/C SPAN/Zogby tracking poll

New York Poll: Mitt Romney 19%, Mike Huckabee 8%, John McCain 53%, Ron Paul 5%.

Mitt Romney Leads California Poll Released by Reuters/C SPAN/Zogby tracking poll

California Poll: Mitt Romney 40%, Mike Huckabee 12%, John McCain 32%, Ron Paul 5%.

John McCain Leads National Poll Released by CBS News Poll

CBS News National Polls Poll: Mitt Romney 23%, Mike Huckabee 12%, John McCain 46%, Ron Paul 9%.

John McCain Leads National Poll Released by USA Today/Gallup Poll

Gallup National Polls Poll: Mitt Romney 24%, Mike Huckabee 18%, John McCain 43%, Ron Paul 4%.

Barack Obama Leads Missouri Poll Released by Reuters/C SPAN/Zogby tracking poll

Missouri Poll: Hillary Clinton 42%, Barack Obama 47%.

Hillary Clinton Leads New Jersey Poll Released by Quinnipiac University poll

New Jersey Poll: Hillary Clinton 48%, Barack Obama 43%.

Hillary Clinton Leads New Jersey Poll Released by Strategic Vision

New Jersey Poll: Hillary Clinton 47%, Barack Obama 41%.

Hillary Clinton, Barack Obama Tied In New Jersey Poll Released by Reuters/C SPAN/Zogby tracking poll

New Jersey Poll: Hillary Clinton 43%, Barack Obama 43%.

Barack Obama Leads Georgia Poll Released by Strategic Vision

Georgia Poll: Hillary Clinton 27%, Barack Obama 49%.

Barack Obama Leads Georgia Poll Released by Reuters/C SPAN/Zogby tracking poll

Georgia Poll: Hillary Clinton 31%, Barack Obama 48%.

Hillary Clinton Leads New York Poll Released by Quinnipiac University poll

New York Poll: Hillary Clinton 53%, Barack Obama 39%.