Politically Correct is Neon Tommy's politics and election coverage blog.(Courtesy: Dawn Megli/Neon Tommy)

Both candidates took the time to reflect on Twitter.

Romney tweeted:

"On this most somber day, America is united under God in its quest for peace and freedom at home and across the world."

Obama tweeted:  

"As painful as this day is and always will be, it leaves us with the lesson that no act of terrorism can ever change what we stand for."

Neither candidate scheduled any campaign stops and both candidates pulled negative ads off of the air for the day, Newsday reported.

During the day, Obama held a moment of silent at the White House and then took a trip to the Pentagon, the target of one of the four planes al-Qaida hijacked. Afterwards, he made an unscheduled stop at Arlington National Cemetery. There he put “challenge” coins -- medallions that bear insignia passed out by commanders as motivation or to honor achievement -- on several of the graves, CBS News reported. 

Meanwhile, Romney addressed the National Guard at the National Guard Association Convention. Giving a nod to President Obama, Romney thanked the troops for protecting the United States, “including those who traced the trail of terror to that walled compound in Abbottabad and the SEALs who delivered justice to Osama Bin Laden,” Newsday reported.

During his speech, Romney called for a well-funded military. He also briefly mentioned of the war in Afghanistan, Wall Street Journal reported.

"Our goal should be to complete a successful transition to Afghan security forces by the end of 2014," Romney said. "We should evaluate conditions on the ground and solicit the best advice of our military commanders."

Alternatively, Obama’s policy is to pull troops out of Afghanistan in 2014, the Journal reported.

Read more of Neon Tommy's coverage of the 2012 Election here.

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