A Russian lawmaker took to Twitter Monday to taunt the U.S. as it reeled in horror from a mass shooting at the D.C. Navy shipyard, saying it was an example of “American exceptionalism.”

“New shooting at the Navy headquarters in Washington — Lone shooter and 7 corpses. No one is surprised. American exceptionalism,” Alexey Pushkov wrote, the Huffington Post reported in its translation of the tweet.

When a series of angry tweets followed the diatribe, he added:
“Exceptional Americans! Some of you have just proved that you are really exceptional – first of all, by your level of hatred and animosity,” the New York Post reported.

Pushkov, a member of the Russian Parliament’s foreign affairs committee, was referring to the “American Exceptionalism” that President Barack Obama talked about in a speech to the nation about possible intervention in Syria.

“That’s what makes us exceptional,” Obama said about U.S. willingness to use military might for just cause. “With humility, but with resolve, let us never lose sight of that essential truth.”

Russian President Vladimir Putin dismissively called the concept “dangerous” in an op-ed piece for The New York Times.