Think Hillary Clinton Is Likely To win? Think again. - NationalJounal [View all]

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PREDICTIVE INTELLIGENCE
Think Hillary Clinton is likely to win? Think again.
BY ALEX ROARTY - NationalJournal
2/14/15

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Ask around: Washington is pretty certain Hillary Clinton is the favorite to win the White House. Democrats have a natural turnout advantage in presidential years, seasoned political operatives reason. Five of the past six popular-vote tallies have gone to the Democratic candidate. And early polls that show Clinton sporting a big lead, especially among women, have strategists wondering how the Republican nominee could ever catch up.

But outside of the capital, from Georgia to New York to California, there's another set of political professionals watching this race: academics and model-makers. And based on the data they track, Democrats have little reason to be so bullish about Clinton's chances.

"Viewing her as a prohibitive favorite at this point is misplaced, definitely," says Alan Abramowitz.

Abramowitz isn't a Republican pollster or a professional Clinton-hater. He's a political science professor at Emory University in Atlanta. And he and his ilk—the wonky academics who research in anonymity while pundits predict races on TV—offer the most compelling case for reconsidering Clinton as the likely winner.

"I would feel comfortable saying that it's a 50-50 race right now," says Drew Linzer, a political scientist who is an independent analyst in Berkeley, California. "But I don't think anyone would be wise going far past 60-40 in either direction."

Veteran political operatives regard these predictions as nothing more than musings from the Ivory Tower. But political scientists who specialize in presidential-race forecasts aren't relying on their guts. They've built statistical models that draw on the history of modern presidential campaigns (since Harry Truman's reelection in 1948) to determine with startling accuracy the outcome of the next White House contest.

The best-known forecasting tool of the bunch—and one that plainly spells out Clinton's looming trouble—is Abramowitz's "Time for Change" model. He first built it before George H.W. Bush's 1988 election, and he has used it to predict the winner of the popular vote in the seven White House races since. (The model predicted that Al Gore would win the presidency in 2000, when he became the first person since Grover Cleveland to earn the majority of the popular vote nationally but lose the Electoral College.)

The model uses just three variables to determine the winner: the incumbent's approval rating, economic growth in the second quarter of the election year, and the number of terms the candidate's party has held the White House. Official forecasts aren't made until the summer before the presidential election. But reasonable estimates rooted in current political and economic conditions demonstrate Clinton's vulnerability.

Consider this scenario: President Obama retains equal levels of approval and disapproval, better than he has had most of his second term; and gross domestic product growth in the second quarter of 2016 holds at 2.4 percent, the same as last year's rate of growth. Under this scenario, the "Time for Change" model projects that Clinton will secure just 48.7 percent of the popular vote.

In other words, she loses...

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More: http://www.nationaljournal.com/magazine/predictive-intelligence-20150213