Sen. Marco Rubio, R-Fla.:
You know, that's a very good question.
And a lot of people out there, you hear — as you voice these complaints that I voice, the comeback is, well, do something about it. And in the field of foreign policy, there are limits to what Congress can do.
As an example, in Syria, Congress, using the control of the purse strings, we can cut off funding for an operation, but we can't order the commander in chief to stay in one or to undertake one.
And so I think our role is largely, although an important role, is the role of oversight. For example, I mean, I would love for us to be having hearings. I know it's the end of the year, but I think it's important for the secretary of state, for the secretary of defense or others to come before the appropriate committees in Congress and sort of outline why this is a good idea and answer questions, as an example, with ISIS.
The intelligence information that's available, that has been widely leaked and reported, and people discuss all the time, but just open-source reporting — let's just rely on that — makes it clear that ISIS has not been defeated, that ISIS remains a threat in the region, and that they're reconstituting themselves into an insurgency.
Without Americans there, we know the Kurds are likely to abandon the effort to fight ISIS and return to their home cities to fight against the Turks.