ALEXANDRIA, Va. — When the Republican presidential campaigns reserved a meeting room at the Hilton Hotel here, they did so under the name “Family Dinner.” That suggests a bit more unity than actually exists among a bunch of highly-competitive political operatives. But most agree that after the debacle in Boulder, the present GOP debate system needs to change.

In recent days, there has even been talk of a far-reaching overhaul. But the changes discussed at the gathering here Sunday night are more fixes to the system rather than fundamental restructuring.