how to move from Ghana to the U.S thru a third country if denied a U.S passport

is there any oone whom can tell me how to move thru Mexico or some other country without having a
U.S passport say thru Mexico and posibbly getting into the U.S?

It depends on what kind of passport you have. Canadian and many European passport holders don't need visa to enter the U.S. for visit. Otherwise, you might need visa to enter the U.S. no matter whether you enter from Mexico or somewhere else. BTW, it does not seem a good idea to go through Mexico right now because of the drug war there.