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(CNN) – Sen. Bob Corker, R-Tennessee, said there has been a rush for President Obama to address the threat posed by terrorist group ISIS, also known as ISIL.
"But it's evident to me that they don't have the pieces put together," Corker said in an interview with CNN's "The Lead with Jake Tapper."
"It's all convoluted and it's mostly being done for optics, and I do hope at some point they're to get serious about giving us the details of how we're going to deal with ISIL so the planning deals with the rhetoric with what is happening over there," he said.
The Obama administration has repeatedly said there will be no boots on the ground, no U.S. combat mission in the fight against ISIS. But military leaders have said they will advise U.S. ground troops if necessary.
"When you're sitting down and laying out how you're going to defeat an enemy like this, you don't start caveating everything. So I just think this whole thing, to me, I hate to say it, has not been very serious," Corker said.
For more of our interview with Sen. Bob Corker, check out the video above.