Data: Gallup, January-June, 2017; Chart: Andrew Witherspoon / Axios

Trump's average approval rating over the past six months is at or above 50% for only 17 states, per Gallup.

Notably, the three states (Michigan, Wisconsin, and Pennsylvania) that gave Trump the key 78,000-vote margin that set his path to victory in the 2016 U.S. presidential election hold an unfavorable view (below 50% approval) of Trump.

Why it matters: As The Washington Post's Philip Bump writes, "If Trump were to win only states where he had at least 50 percent approval in the first six months of this year, he'd end up with 99 electoral votes out of the 270 needed to win the presidency." And although not exact, reelection results tend to track with approval polls.