What were the most important factors that contributed to Barack Obama's election in 2008?

The population was dissatisfied with the Republican policies and the promises Obama made had been very enticing.

Explanation:

Obama was an unlikely president in spite of his long winded political career and savvy politics not the least because of his skin color and the nature of the country at the time in the middle of a long winded war on terror that did not look like it was going to end any time soon.

Obama was elected as a polar opposite alternative to the President Bush who had not made the people satisfied with his efforts and the country seemed to be in a huge crisis in his time.

the big stick policy was to still look powerful, and be nice at the same time. the big stick policy was also to countries who were at war, find peace with eachother.

the dollar diplomacy was to expand american business and get it to latin america, for that would be good for the economy.

you my friend, your regards.

agubaba khaleekha.

some american cities felt workers were being oppressed by business monopolies