By Jim Ellis
North Carolina Republican state Sen. Dan Bishop (left) | Democrat Dan McCready (right)
JMC projected Sen. Bishop leading 46-42 percent in their survey of 350 likely special election voters conducted on May 21-24. Atlantic polled 358 “definite or very likely” special election voters from May 20-23 and continuing through May 28-30. Though the two polls produced separate leaders, their combined data conclusions are similar in that the participants are within the polling margin of error. While the spread yields an eight-point net difference between the two polls, the margin of error contained in each is less than four percent.
But the Atlantic methodology is a bit different. The research firm polled on consecutive weekdays in two separate weeks leaving the Memorial Day weekend period unsampled. The gap leads to a longer than average polling stage, which could mean a less accurate conclusion.
Atlantic Media also reviews its previous poll completed five months ago in December of last year, just after the general election, and compares those results with the most current data set. The numbers are similar in that the partisan ballot tests and the president’s job approval rating varies by only a percentage point or two. And, attempting to discount the final 2018 result that was infected with voter fraud, the Atlantic December post-election poll finds candidate McCready topping Republican Mark Harris by a tight 46-43 percent margin.
