The mexican cession occurred with the signing of the treaty of guadalupe hidalgo, in which mexico had to give up all claims to southern texas and give the united states a huge region

the united states has a federal government. the president is the head of the federal government of the united states. however, each state forms its government for administration purposes. the powers of the state governments are exercised within restricted state boundaries. and citizens participate in this government by voting.

yes

it is because 3 because the citizen the northern democratic party watned the warning on red to blue because it is purple. lol