If I hear one more Bush Legacy con-artist --- or worse, supposed Progressives who brainlessly buy into the masterstroke of propaganda --- state that "Bush kept us safe" or "There have been no terror attacks on American soil since 9/11," I think I may shoot someone, or poison them with anthrax --- just to keep them safe.
To be clear, there were deadly terror attacks --- and on American soil! --- since 9/11.
5 people were killed and 17 other were injured in the 2001 anthrax attacks in what was the most deadly use of lethal bioterrorism on American soil in this nation's history. Many of those multiple terror attacks included notes intended to signal that they were attacks by supporters of Islamic jihadists.
Additionally, in October 2002, for three weeks, D.C. and environs were ground to a panicked stand-still as sniper attacks by a terrorist from the Nation of Islam went on for three weeks, killing 10 people and injuring 3 at 15 different sites throughout the Beltway.
Both the Anthrax Attacks and the Beltway Sniper Attacks were terrorist attacks on Americans, on American soil, following 9/11.
As to Bush having kept us safe beyond the 15 killed and 20 injured in the dozens of terror attacks on American soil since 9/11 as mentioned above, to date 4,230 U.S. troops have been killed in Iraq. Additionally, 172 American civilian contractors were also killed in the unnecessary, optional war on a country which had nothing to do with 9/11. Moreover, tens of thousands of U.S. troops were permanently injured in the conflict.
The number of U.S. troops killed in Iraq, under Bush's optional deployment, far exceeds, by more than one thousand, the number of American citizens killed on 9/11.
Counting only the dead (and only the American dead, in this case, since estimates of violent Iraqi civilian fatalities during the war are currently estimated to be anywhere from a conservative 150,000 to more than 1,000,000) that totals 4,245 Americans killed by terrorists, or in optional conflicts with terrorists, since 9/11.
"Bush kept us safe"?
Since 9/11, we could have had 14 different massive domestic terrorist bombings, in 14 different major U.S. cities, kill 300 Americans in each attack, and still had fewer Americans killed by terrorists since 9/11 than we have under the bold and courageous leadership of George W. Bush.
None of the above refers to the likely millions of individuals across the world now far more interested in bringing us harm than they were prior to 9/11, but other than that, yeah, "Bush kept us safe".