Obama vs. Romney on 9/11 and Twitter

Romney's first tweet of the day:

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

-Mitt Romney (@MittRomney) September 11, 2012

Obama's first tweet of the day:

The election is in 8 weeks. Sign up to volunteer: OFA.BO/s3tXFz

-Barack Obama (@BarackObama) September 11, 2012