I'm not certain the National Guard can be federalized without the states consent. It's a murky area of mixed funding and authority, and I'm not Guard, but I seem to recall some legal classes where they said the state had to sign off on the call up.
I'm not 100% sure, but I don't think that's the case. There is at least one instance which is directly onpoint...
In 1957 Arkansas Governor Orville Faubus called up the Arkansas National Guard to prevent black students from enrolling in/attending Little Rock High School. In doing so Faubus was directly contradicting a Federal integration order.
President Eisenhower federalized the Guard, effectively removing them from Faubus' control, and ordered troops back to their armories and sent in units from the 101st Airborne Division to maintain civil order and protect the black students.