Latino voting 2008 2010 topics of interests?

Anyone have an interesting idea on what to research regarding the latino minority vote in the us elections of 2008 or 2010 or both?

I was thinking of finding out the percentage shift that mccain would have gotten if obama didnt have them and why they lean left besides obvious Dem issues, since they tend to single issue vote like on immigration and social things. any ideas would help lotss
Latinos are going to outnumber any other race (Whites/blacks) in the coming years, so i find this very interesting. The minority becoming a majority
 
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