Ill give brainlies to the first correct answer In 1846, most Americans supported a war with Mexico hoping that it would settle boundary disputes and increase the United States’ territory. Why didn’t American abolitionists support the Mexican-American War?

1 They did not want slavery to extend to new areas of the United States.
2 They did not want slaves to be drafted into the military.
3 A Mexican win would force every American state to adopt slavery.
4 Abolitionist groups would weaken if too many of their members went away to war.

3. A Mexican win would force every American state to adopt slavery.

b) a state law could be declared illegal if it contradicted the constitution.

explanation:

the conflict of this case originated when james w. mcculloch, a cashier of the baltimore branch of the second bank of the united states that the congress had chartered in 1816, refused to pay a tax imposed by the maryland state.

in the case, the state of maryland appealed that the establishment of a second bank was unconstitutional since the constitution didn't say anything about granting that power to congress. however, the case determined that even if such right wasn't specifically stated in the constitution, it was part of the "implied powers" of the government enunciated in article i, section 8.

the case also eliminated maryland's legislation to impose taxes to a national bank, asserting that even though the states retained the power of taxation, the constitution's laws are supreme and can not be controlled by the states, therefore, if a state law contradicts the constitution, it should be declared illegal.

explanation: