The GOP senator said Sunday the attack undercut the administration's "narrative" about foreign policy successes in the Middle East.

Issa said Sunday the administration failed to "put real security ahead of the appearance of not needing security" in Libya.

“It would really be abhorrent to make this into a campaign issue,” said slain Ambassador Chris Stevens's father.

Senior Obama campaign advisor Robert Gibbs defended the president from Republican criticisms about his response to the attack on the U.S. Consulate in Benghazi, Libya, saying that Obama was determined to figure out more about what led to the assault.

Republicans have criticized the administration for not immediately identifying the assault, which resulted in the death of U.S. Ambassador Chris Stevens, an attack of terrorism. The GOP has also trained its focus on remarks made by Vice President Biden in his debate with Rep. Paul Ryan (R-Wis.) about the administration not being aware of requests for more security at U.S. embassies and consulates.

But during an appearance on CNN’s State of the Union on Sunday morning, Gibbs said “[F]irst and foremost, nobody wants to get to the bottom of exactly what happened more than this president and this administration.

Axelrod said Biden and Obama were unaware of requests for more security at the consulate in Libya.

The Democrats’ effort to define Romney on national security echoes earlier strategy on domestic policy.

The timeline of events and the administration’s shifting explanations have become a major problem for Democrats.

Business groups want Congress to overhaul a rule that all cargo shipped to the United States be scanned.

In tweets to his 1.5 million followers, the former House speaker on Saturday said "no one died" at Watergate.