Post-New Hampshire Primary Polling Suggests Trump's Historically Well Positioned To Capture GOP Nomination

Photos, from left to right, courtesy of Getty Images, Carlos Osorio/AP, and Mike Segar/Reuters

To the chagrin of the sixty-to-seventy-odd percent of Republicans who do not support Donald Trump as their nominee for president, the billionaire firebrand is looking mighty dominant in post-New Hampshire primary polling. But how is he standing up compared to past polling front-runners at this point in the campaign? For Trump critics, the news is pretty bleak, yet not without at least a faint glint of hope.

In my experience, it's always best to start with the bad news, so here goes:  in nearly every presidential primary since 1976, the national polling leader between the New Hampshire and South Carolina primaries has gone on to become their party's nominee. Specifically, of the fifteen post-New Hampshire national primary polling leaders examined over the last forty years, twelve eventually earned their party's nomination (or 80% of the time).

Having said that, Donald Trump is currently the Republican's national polling leader, and by a wide margin. With one day remaining until South Carolinians head to the polls, Trump's averaging 36% support from Republicans across seven primary surveys conducted after the New Hampshire primary, reaching as high as 41% and as low as 26%. He maintains an average seventeen point advantage over his next closest competitor, Ted Cruz.

Faced with the numbers, and what we know of history, what else is there to conclude other than the fact that Trump appears headed for the Republican nomination?

The Predictive Power of (Very) Early Presidential Primary Polling Part IV - 2008 GOP & 1980 Democratic Primaries

Both Rudy Giuliani (R-NY) and Edward Kennedy (D-MA) led primary polling for the first three years of their respective party's primary process, only to come up empty handed. Photos courtesy of Joan Readle/Getty (left), and Corbis (right)

Hillary Clinton and Chris Christie would stand a fair chance of winning their party's nomination if Republicans and Democrats decided on a nationwide basis at the ballot box today. But then again, so would General Colin Powell at a similar point in 1997, and Senator Edward Kennedy in 1981. Unfortunately for them, that's not how the party's pick their nominees.

As discussed in part 1 of this series, there have only been three instances in the last forty years of presidential primary polling in which the frontrunner in the first year following the preceding election went on to win his party's nomination.

Clinton and Christie can't like those odds. But about 80% of the time, or three out of the last fifteen primaries, early surveys were unreflective of final results.

The twelve Republican or Democratic primaries since 1976 to feature non-predictive early primary polling split roughly into two groups - 1) those where the eventual nominee showed up in early surveys, but not as the frontrunner (as discussed in Part 2 and 3 of this series), and 2) those where the eventual nominee seems to have come from nowhere, emerging in much later polling, sometimes after primary contests have begun.

This fourth installment will continue to focus on group one above...namely the 2008 Republican and 1980 Democratic Presidential Primaries.


2008 - THREE YEAR FRONTRUNNER FINISHES WITH ZILCH

It's been less than ten years, but some may be surprised to recall that there was a definite polling frontrunner in the early 2008 primary process - it just wasn't John McCain. Former New York City Mayor Rudy Giuliani had been in the spotlight since the September 11th terrorist attacks, which took place in the waning three months of his eight year mayorship. That adoration turned to presidential speculation not long after the Republicans renominated President Bush in 2004. By the next year, the speculation had translated into a fairly consistent lead in early 2008 Republican presidential primary polling:

Across sixteen surveys in the first year following the 2004 presidential election, Giuliani led likely GOP foes in twelve of them, tied for first place in two, and finished a close second place in the remaining two.

The Predictive Power of (Very) Early Presidential Primary Polling Part III - 1984 Democratic Primary

From left, Gary Hart, Walter Mondale, John Glenn, George McGovern, and Jesse Jackson participate in a primary debate in March of 1984. John Glenn and Gary Hart seriously challenged Mondale in national polling at various stages of the pimary process, though none of the three candidates led in the first year of 1984 primary polling. Photo courtesy of Wally McNamee/CORBIS

The wealth of 2016 polling, of both the general election and primary sort, led veteran news journalist Tom Brokaw to quip yesterday morning on "Meet the Press": "We have an hour to fill." Los Angeles Times writer Mark Barabak recently dedicated an entire column to their futility. And the mere existence of a recent NBC/WSJ poll on the 2016 general election practically ruined NPR reporter Don Gonyea's breakfast last week.

Overly dramatic or not, many of the talking heads looking down on early 2016 polling, at least on the primary level, are justified in their skepticism. Early presidential primary polling, especially those taken the first year following the preceding presidential election, are historically unreliable. In fact, only 3 of the last 15 Republican or Democratic primaries saw the leader in very early polling go on to win the nomination (as noted in parts one and two of this series).

To be fair, as Nate Silver has noted in the past, presidential primary polling accuracy rises sharply following midterm elections. But surveys conducted between the preceding general election and the midterms accurately forecasted the eventual nominee for just three people: Al Gore in 2000, Bob Dole in 1996, and George H.W. Bush in 1988.

Part 2 of this series began exploring those primaries where the eventual winner was on the polling radar very early in the process, but was not the initial leader (such as the case with George W. Bush in 2000). In this third installment, I'll continue in the same vein by looking at 1984 Democratic Primary Polling conducted between November 4, 1980 and December 31, 1982. Like in 2000, the eventual nominee (Walter Mondale) showed up in early polling, just not as a frontrunner. That title belonged to Edward Kennedy.