These hold the key
A look at the states which might decide the US presidential election. The number of electoral votes is in parenthesis. The winner needs 270 votes.
Alabama (9) - Safe for Romney.
Alaska (3) - Romney will win.
Arizona (11) - Romney should win
Arkansas (6) - Romney territory.
California (55) - Obama gets the biggest state.
Colorado (9) - Presidential battleground state.
Connecticut (7) - Safely Obama's.
Delaware (3) - Obama's with ease.
District of Columbia (3) - Obama's, overwhelmingly.
Florida (29) - Biggest presidential battleground.
Georgia (16) - Part of Romney's Southern base.
Hawaii (4) - Obama a winner in his home state.
Idaho (4) - Safe as can be for Romney.
Illinois (20) - State that sent Obama to the Senate will vote for him again.
Indiana (11) - Safe for Romney, four years after Obama won it.
Iowa (6) - Presidential battleground.
Kansas (6) - Reliably for Romney.
Kentucky (8) - Safe for Romney.
Louisiana (8) - Another southern state for Romney.
Maine (4) - Obama favoured for state, but Republicans talk of winning one electoral vote.
Maryland (10) - Obama an easy winner.
Massachusetts (11) - Obama wins the state where Romney was governor.
Michigan (16) - Despite late GOP ads, Obama favoured in state that benefited most from auto bailout.
Minnesota (10) - Lining up for Obama despite late Republican push.
Mississippi (6) - Romney will win easily.
Missouri (10) - Romney territory.
Montana (3) - A Western win for Romney.
Nebraska (5) - Romney's with ease.
Nevada (6) - Western presidential battleground.
New Hampshire (4) - New England battleground.
New Jersey (14) - Obama.
New Mexico (5) - Obama.
New York (29) - Big for Obama.
North Carolina (15) - May be Romney's best battleground state.
North Dakota (3) - Safe for Romney.
Ohio (18) - Battleground of battlegrounds for Obama and Romney.
Oklahoma (7) - Romney's easily.
Oregon (7) - West Coast win for Obama.
Pennsylvania (20) - Should be Obama's, despite late push by Romney.
Rhode Island (4) - Obama's with ease.
South Carolina (9) - Romney will win easily.
South Dakota (3) - Republican state for Romney.
Tennessee (11) - Romney with ease.
Texas (38) - Romney's biggest single-state prize.
Utah (6) - Mormon votes could make this Romney's best state.
Vermont (3) - Obama territory.
Virginia (13) - Battleground presidential state.
Washington (12) - Obama winning easily.
West Virginia (5) - Romney by far.
Wisconsin (10) - Battleground in White House race.
Wyoming (3) - Romney's with ease.