US election 2012: how US voters have changed Using exit poll data from Edison research we have plotted the key demographics of voters for the main two candidates. Independent candidates and parties other than the Democrats and Republicans are shown in grey. In this week's election Barack Obama had a strong advantage amongst women, and black, hispanic and asian voters. The hispanic community is a key factor in future US elections because of the rapid growth of the demographic, and their overwhelming tendency to vote Democrat. Some predict that even strong red states like Texas could be won by the Democrats as soon as 2020 thanks to this effect.