I have been registered since 1979 and President Reagan was the first President I voted for in the 1980 general election. I always vote for the republican nominee in the general election. Except when the president runs for reelection, then I vote for him also in the TN primaries.
President Reagan is an example in 1984 and George W. Bush in 2004.
Also I have never missed an election, no matter how unimportant some seem to be.