With 7 weeks to go, Obama-Romney race still tight

[David Jolkovski/AFN]

Voting

Voting taking place at Pecos Community Center on Tuesday, Aug. 28, 2012.

Mary Altaffer

Mitt Romney, Paul Ryan

RETRANSMISSION FOR ALTERNATE CROP - Republican presidential candidate, former Massachusetts Gov. Mitt Romney, right, and vice presidential candidate Wisconsin Rep. Paul Ryan, R-Wis., wave at the crowd during a campaign event, Saturday, Aug. 11, 2012 in Norfolk, Va. (AP Photo/Mary Altaffer)

John Raoux

Barack Obama

President Barack Obama waves to supporters after speaking at a campaign event, Sunday, Sept. 9, 2012, in Melbourne, Fla. (AP Photo/John Raoux)

Evan Vucci

Mitt Romney

Republican presidential candidate, former Massachusetts Gov. Mitt Romney eats ice cream after making a stop at Millie's before a fundraising event on Saturday, Aug. 18, 2012 in Nantucket, Mass. (AP Photo/Evan Vucci)

Jonathan Bachman

Obama

President Barack Obama greets New Orleans Mayor Mitch Landrieu, as Louisiana Gov. Bobby Jindal, center, and Sen. Mary Landrieu, D-La., watch as he arrives at Louis Armstrong New Orleans International Airport in Kenner, La., Monday, Sept. 3, 2012. (AP Photo/Jonathan Bachman)

David Goldman

Republican Convention

Workers place Romney-Ryan campaign sign inside of the Tampa Bay Times Forum at the Republican National Convention in Tampa, Fla., on Sunday, Aug. 26, 2012, as pictures of Neil Armstrong, the first man to walk on the moon, are displayed on the main stage. (AP Photo/David Goldman)

Charlie Neibergall

Democratic Convention

President Barack Obama speaks to delegates at the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/Charlie Neibergall)

Chris O'Meara

Republican Convention

Protest marchers move with a puppet depicting Republican presidential candidate and former Massachusetts Gov. Mitt Romney during a march, Sunday, Aug. 26, 2012, in Tampa, Fla. Hundreds of protestors gathered in Gas Light Park in downtown Tampa to march in demonstration against the Republican National Convention. (AP Photo/Chris O'Meara)

Lynne Sladky

Democratic Convention

President Barack Obama waves with former President Bill Clinton after Clinton's speech to the Democratic National Convention in Charlotte, N.C., on Wednesday, Sept. 5, 2012.(AP Photo/Lynne Sladky)

Evan Vucci

Mitt Romney

FILE - In this Aug. 29, 2012 file photo, Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks at the American Legion National Convention in Indianapolis. When Romney addresses the Republican convention Thursday night, he'll do it from a stage that puts him a little bit closer to the crowd inside the convention hall. His campaign hopes the evening ends with Americans feeling a little bit closer to the Republican presidential candidate, too. (AP Photo/Evan Vucci, File)

J. Scott Applewhite

Barack Obama

President Barack Obama addresses the Democratic National Convention in Charlotte, N.C., on Thursday, Sept. 6, 2012. (AP Photo/J. Scott Applewhite)

Charles Dharapak

Republican Convention

Republican presidential nominee Mitt Romney addresses delegates before speaking at the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Charles Dharapak)

White House

Immigration Arizona

President Barack Obama announces his support for a plan that could remove the threat of deportation for low-risk undocumented aliens who were brought to this country as children.

Evan Vucci

Mitt Romney, Ann Romney

Republican presidential candidate, former Massachusetts Gov. Mitt Romney and his wife Ann, leave the Church of Jesus Christ of Latter-day Saints after services on Sunday, Sept. 2, 2012 in Wofeboro, N.H. (AP Photo/Evan Vucci)

Carolyn Kaster

Barack Obama

President Barack Obama campaigns Saturday, Aug. 18, 2012, in Windham, N.H., at Windham High School. (AP Photo/Carolyn Kaster)

Charles Dharapak

Mitt Romney

Republican presidential candidate Mitt Romney hands out hot dogs as he campaigns at the Federated Auto Parts 400 NASCAR Sprint Cup Series race at Richmond International Raceway in Richmond, Va., Saturday, Sept. 8, 2012. (AP Photo/Charles Dharapak)

Pablo Martinez Monsivais

Barack Obama

President Barack Obama, left, greets patrons during an unscheduled stop at the Buff Restaurant, Sunday, Sept. 2, 2012, in Boulder, Colo. (AP Photo/Pablo Martinez Monsivais)

file photo

Voting