Congressional lawmakers urged the Obama administration to crank up the offensive against the Islamic State after another video surfaced purporting to show the graphic execution of an American journalist.
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Two weeks after American James Foley was beheaded by his Islamic State captors, a video emerged Tuesday afternoon claiming to show freelance journalist Steven Sotloff being executed in the same way.

The White House and State Department said intelligence officials are working quickly to determine the video’s authenticity. If it is genuine, State Department spokeswoman Jen Psaki said, “We are sickened by this brutal act.”

But U.S. lawmakers on both sides of the aisle urged tough and swift action in response.

“Let there be no doubt, we must go after ISIS right away because the U.S. is the only one that can put together a coalition to stop this group that’s intent on barbaric cruelty,” Sen. Bill Nelson, D-Fla., said in a statement.