Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
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(CNN) – Lawmakers and military analysts have said boots on the ground will be necessary to defeat ISIS.
But the United States' Arab coalition allies are reluctant to put boots on the ground, so will the task ultimately fall to the U.S.?
"We need to be a little more clear about what U.S. troop presence we're talking about – advisers, special operators – it's not zero boots on the ground," said CNN political commentator Jay Carney.
President Obama repeated his pledge of no U.S. troops in his address to the United Nations Wednesday, but he used more cautious language, saying: "In this effort, we do not act alone. Nor do we intend to send U.S. troops to occupy foreign lands."
"Right now what we're doing may contain ISIS, it may degrade them a little, it will not destroy them," said The Weekly Standard's William Kristol.
Obama is "going to get dragged into eventually sending in the 20,000 troops to destroy ISIS," said Kristol.
For more of our discussion with CNN political commentator Jay Carney and The Weekly Standard's William Kristol, click on the video above.