What does this US map represent?

What does this US map represent?

What do you think this US map represents?

Correct answer will be given in a few days. Thursday.

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The scale at the upper left is in percent (%). The map shows each state's approval rating of President Trump after his first 100 days in office. The darker the state's color is, the more positive is that state's approval rating. The lighter the state's color is, the less positive (or more negative) is that state's approval rating.

The darkest states are strong red Republican states, while the lightest states are strong blue Democratic states.
What does this US map represent?
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