imrs.php-02a152702b38bdf30e0ac2b65632cf8681a787e6 This post was originally published on this site

MDonald Trump waves goodbye to the crowd from his plane after speaking at a campaign event in Millington, TN on Saturday Feb. 27, 2016. (Jabin Botsford/The Washington Post)

The low point of Donald Trump’s campaign so far came about a week after the conclusion of the Democratic convention. His mediocre convention was followed by Hillary Clinton’s successful one, which was followed by Trump’s fight with the family of a Muslim servicemember who was killed in Iraq. By August 8, Trump trailed Clinton by 8 points in the RealClearPolitics average of national polls. Since then, he has steadily climbed back, thanks in part to undecided voters coming on board and thanks in part to Clinton’s support fading a bit.

I have found that the most informative benchmark for measuring Trump’s success is by comparing it to Mitt Romney’s. Romney lost in 2012, of course, so Trump must win at least a few of the states that Romney lost in order to pass the 270-electoral-vote threshold. Which states he needs to win is a bit more in flux; various combinations can get him over the necessary margin.

As it stands, Trump is performing a bit better now nationally than Romney was at this point. Romney saw a surge shortly before the election thanks to his strong performance in the first debate; that surge pushed him into the national lead in the polling average. (Though we hasten to note that the final RCP average was lower than the actual result, thanks in part to pollsters underestimating the turnout of nonwhite voters.)

The release of a new survey from NBC and the Wall Street Journal on Wednesday evening showing Clinton with a 7-point lead helped reverse the direction of the trend over the past few days. Time will tell if that reversal holds.

As the national polls have moved toward Trump, so have the state polls. If we look at the 11 states which are closest right now in the RCP average, Trump has gained about two points on average since the start of the Republican convention. In only two states, Georgia and New Hampshire, has he lost ground over that period. He still trails in four of those 11 states (Colorado, Wisconsin, New Hampshire and Virginia), and is tied in a fifth, Florida. He leads in Ohio, Iowa, Nevada, Georgia, Arizona and North Carolina. Obama won the first three of those.

In about half the states, he’s faring better than Romney did four years ago, by varying margins.

The three states where he’s performing at the widest discrepancy from Romney are Ohio, Nevada and Arizona. In all three, he has a lead of around 2 points. Obama won Ohio by 3 and Nevada by almost 7 points; Romney won Arizona by 9. Part of the difference Trump is seeing is a function of which polls have come out recently (since the average, obviously, incorporates only recent polls), but some of it is probably demographic. Here’s what the polling in Nevada and Arizona has looked like for Trump relative to Romney: Consistently better in Nevada, and consistently worse in Arizona.

In Ohio, the big shift toward Trump has been fairly recent, bolstered by a slew of polls showing him with a sudden lead. Add that to Romney’s collapse in the state at this point four years ago, and you see the big difference.

The closest states right now mirror Romney’s performance a bit more closely. In Florida, Trump is tied with Clinton; Romney trailed Obama by a bit at this point in 2012. (Notice that the final RCP average had Romney winning the state, which he didn’t.)

In North Carolina, Trump’s finally taken the lead after trailing slightly for some time.

But remember: Romney won North Carolina, too, along with Arizona. That’s the problem at the heart of Trump’s electoral math: The map is already working against him.

Consider this. If we apply the current RCP averages to the states nationally (which you can experiment with yourself, using our electoral college map tool), Trump wins a majority of states.

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But he still trails Hillary Clinton by 37 electoral votes. Give him Florida (currently a toss-up) and he still trails by 8. In other words, Trump can win seven of the 11 closest states — Florida, Arizona, North Carolina, Ohio, Nevada, Georgia and Iowa — and still lose. If Clinton wins Florida, Trump needs to win all 10 of the other states to win the election (which he would do by 6 electoral votes). Where Clinton leads, she leads by an average of 5 points.

Remember, though, that Trump’s position two weeks ago was much worse. His national improvement showed up in state polls, meaning that the electoral math has shifted in his favor. If the national polls keep shifting his way, it will keep dragging states into his column, changing the math. Prompting two questions: Will the national numbers keep moving, and can they?

The will question is linked to the can. Since May 1, there have been three days that Trump’s polling average has been at or above 45. Clinton has been at or above 45 on 83 days, of 144 total. After Trump’s month-long surge, he peaked at about 44 percent — a level that Clintonn has exceeded on 114 of the 141 days since Trump became the party’s presumptive nominee. The persistent question for Trump is where he adds to his support. The NBC-Journal poll reinforces that working-class whites continue to be the core of Trump’s support. He leads that group by 18 points. His efforts to reach out to whites with college degrees, a group Romney won, continue to be unsuccessful. He trails with them by 6 points.

Where do these votes come from? Can he keep gaining among those who right now seem ambivalent about who they’ll pick? Can Clinton?

Donald Trump has had a good month. The question is if he can keep that progress going, and flip enough of those Romney states to win the election. A month ago, the answer was, “it seems very unlikely.” At the very least, that’s no longer the answer to that question.

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