In three states, the youth vote made the difference for Obama in 2008, meaning that if you subtracted all the under-30 votes, the state would flip from Blue to Red in 2008.
- In North Carolina, Obama won the state, taking 74% of the under 30s but losing all the older age groups.
- In Indiana, Obama took the state, winning 63% of the under-30s, but losing all the older groups.
- In Virginia, Obama won the state, taking 49% of the under-30 votes, but McCain won 50% of the 30+ votes, so McCain would have won by a very slight margin if the minimum voting age had been 30.
Additionally, here’s an infographic summarizing youth vote choice in other battleground states in the last five Presidential Elections:
The above graphic is based on the data in this spreadsheet.