If you think about it there is a need for definitive US leadership and an exercise of power but not the recommitment of US ground troops to defeat ISIS.
ISIS has numerous enemies where they are operating. The Kurds are the most effective but they are opposed by Syrians, Lebanese most fighting as Hezbollah, Iraqi Sunni tribesmen, Iraqi Shi’ites, and of course Iranians. All have strong strategic interests in defeating ISIS and have and will continue to provide the “boots on the ground.” Of course the Jordanians are their enemy and the Saudis and Gulf states fear them as an existential threat. They no longer control them or have direct influence.
ISIS continues to exist because of the duplicitous behavior of “NATO ally” Turkey. Turkey provides the safe conduit by which recruits, supplies, medical care and critical communications pass to ISIS. Turkey also does not allow NATO bases on its territory to be used in the fight. If the Obama administration were serious about destroying ISIS, it would use its power and leverage to stop end Turkey’s overt support. Without it they would be surrounded and destroyed in short order. Either the Obama administration is not serious about destroying ISIS or they are hopelessly incompetent. Either way some very tough questions regarding Turkey should be posed to Obama administration officials during Congressional hearings and answers given before Congress agrees to expanded war powers.