What is the most important reason that Truman had for signing executive order 9881?

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )    

first second and third

explanation:

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

lincoln won 212 electoral votes to mcclellan's 21 votes, and lincoln beat mcclellan. is the main reason lincoln won in 1864.