What 2020 will be like

The map below, from NationalPopularVote.com, totals general election campaign events by the nominees of the two major parties in 2016.

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This is by no means the most useful measuring stick for how the Electoral College skews the importance of voters toward only those in a few states. A candidate goes to a state in order to obtain local media coverage and to bolster enthusiasm among loyalists. But there's no particular reason for a candidate to go to a critical state every day for a week, even if the state were absolutely critical, like Florida. A much better measurement of a state's electoral importance is advertising spending and a secondary measurement is money spent on the ground building field offices and installing the many mechanisms to drive turn-out. Nevertheless, the map of visits reveals what everyone in presidential politics know: the vast majority of American voters are taken for granted in the presidential election