Trump has singled out Democrat Jon Ossoff, the formerly unknown film producer and ex-congressional aide who has gained traction in the crowded field thanks to support from prominent legislators and a strong fundraising effort.
Now the question isn't whether he will finish first Tuesday but whether he can earn more than 50 percent of the vote, necessary to win the race outright.
Why is Ossoff a contender?
Given the choice between the two parties on pressing issues, respondents believed that congressional Republicans would do a better job than their Democratic colleagues dealing with terrorism by 12 percentage points, gun policy by five points, the economy by three points and taxes by one point. For another, the district - while reliably Republican - isn't particularly well suited to Mr. Trump's populist approach.
With the slogan "Make Trump Furious", Ossoff aims to galvanize opposition to a president struggling with an approval rating that has not topped 50 percent since he took office on January 20, according to Reuters/Ipsos polling. The race has become an outlet for Democrats frustrated by Mr. Trump's November win.
Trump's executive orders to temporarily stop the entry of individuals from certain countries have been criticized by immigrant advocates and Democrats as a "Muslim ban".
A lot of it comes down to demographics. Georgia's 6th District has elected Republicans to the House since the late 1970s.
Last week, a Democrat challenging for an open congressional seat in a deep-red district in Kansas fell short of an upset. It's less than 100 days into this administration, and while they may have felt like very long days, with many more to come before the prospect of any real change to be had, already a special election is happening that the whole country should be paying attention to. "People should think strategically and vote for a Republican that's willing to stand up to Trump". Instead, he won his rematch with Republican Jim Hagedorn by fewer than 3,000 votes (0.8 percent). The special election will be held on Tuesday, for a seat that hasn't been held by a Democrat since the 1970s. And Judson Hill, a former state senator who represented part of the congressional district locally, also entered the race with the benefit of high name recognition and Gingrich's endorsement. Dan Moody and Johns Creek City Councilman Bob Gray.
Such a battle would weaken Ossoff's chances, assuming that voters now divided among the Republican candidates would coalesce around the single Republican candidate. Ossoff has benefited from the spotlight on his race, raking in $8.3 million, with 95 percent of it coming from out of state, according to his recent FEC filing.
Despite controlling the White House and both chambers of Congress, Republicans have yet to enact major legislation to fulfill campaign promises.
The Democratic Congressional Campaign Committee has also been funneling money into the election, even recruiting actor Samuel L. Jackson for an ad.
The midterm elections can seem very far away, particularly when a single day in the Trump administration-say, April 11, 2017-can bring public threats toward North Korea, the president mixing up which country, exactly, he'd dropped bombs on (that'd be Syria, not Iraq), and what sounded an terrible lot like a press secretary complimenting Hitler's use of restraint.
But there's a danger in reading too deeply into races like this.