States' Longest swing/trend streaks

[Swedish Rainbow Capitalist Cheese]

Can someone tell me the difference between swing and trend? Probably a stupid question, but it would sure be helpful.

Swing is just the actual result of a place. State X went from being 56% D in ´08 to 55% D in ´12. So it swung Republican.

Trend is the result compared to the national average. So in '08 the State was 3% more D than the national average, but in '12 it was 4% more D than the national average. So even though state X swung Republican, it trended Democratic.