No because if every one has to agree with one party then there would be no reason to vote because you will not have a party to debate the issue
This is False. The Mexican-American war was caused by disputes over southern areas. The United States wanted to spread towards the west due to Manifest Destiny ideas, while Mexico was in the way with Texas, Nevada, Arizona, and California. Eventually the US took them all.
The answer would be B) wanted to keep trade in China open