Me answer all of these questions 1) a. why did the republic of texas hope the united states would annex texas? b. how would the addition of texas as a slave state affect the union? 2) a. what did the united states gain as a result of the mexican-american war? b. how do you think the mexican-american war affected the relationship between mexico and the united states? 4) many u. s. senators wanted to annex texas, 5) in mexico, santa anna established a dictatorship, 6) the mexicans laid siege to the alamo,