Which states should a presidential campaign focus on in the general election?

campaigns try and further develop their message to be one that appeal to the necessary groups of voters, relying on polls and focus groups to help them

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".

what are the options ?