With two days to go, the fight for Pennsylvania’s 18th congressional district is a toss-up. Polls released last week show contradictory outcomes, but peg the leader’s margin as a tissue-thin three points. Democrat Conor Lamb and Republican Rick Saccone are racing toward a Tuesday finish uncertain of the order of finish. Who actually wins will likely hinge on turnout and headlines.

Make no mistake, the closeness of the race is tied to Donald Trump’s double-digit slide in a district that he convincingly won less than two years earlier. Against this backdrop, a Lamb win will signal that if the Democrats can win there then they can win almost anywhere. As ex-Vice President Joe Biden Joe BidenBiden leads Trump by 36 points nationally among Latinos: poll GOP set to release controversial Biden report Can Donald Trump maintain new momentum until this November? MORE put it, “I promise ya, if Lamb wins you’re going to see a half-dozen Republicans say, ‘I’m not running again.’” Whether that actually happens remains to be seen

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Until recently, Tim Murphy Tim MurphyBiden receives endorsements from three swing-district Democrats A federal abortion law might be needed Female Dems see double standard in Klobuchar accusations MORE, a veteran eight-term Republican, who had run unopposed in his last two reelection bids, represented the Pennsylvania’s 18th district in Congress. When challenged in 2012, Murphy vanquished his opponent by better than 30 points. With that kind of track history, Tuesday’s contest should have been a snooze. But as we all know, it isn’t. Past was actually prelude.

It turns out that the avowedly pro-life Murphy was forced out after his mistress went public about terminating her pregnancy. While our president claims to be able to get away shooting someone in broad daylight, mere mortals like Murphy, Lamb and Saccone all have a far smaller margin for error. So, here is where they are.

Right now, momentum and buzz are with the Democrat. Already, reports have surfaced of Republicans forming circular firing squads, with figurative trigger fingers pointed right at Saccone. According to the GOP’s wise men, Saccone suffers from poor organization, a charisma deficit, and a lack of fundraising skills. To further complicate matters, the 60-year-old Saccone is facing a decades-younger opponent. For the record, Lamb is also a former Marine, one-time federal prosecutor, and double University of Pennsylvania graduate.

But Saccone’s quandary is not just about aesthetics, resumes, or even the Trump presidency. Rather, Lamb’s positions on the issues and the public’s perception of the Republican agenda appears to be weighing Saccone down. Tax cuts and the prospect of Speaker Nancy Pelosi Nancy PelosiAs families deal with coronavirus, new federal dollars should follow the student Sunday shows - Ruth Bader Ginsburg's death dominates Hypocrisy rules on both sides over replacing Justice Ginsburg MORE did not halt Lamb’s candidacy.

Right off the bat, Lamb announced that he would not back Pelosi for House speaker, signaling his independence from the national party’s machinery. Beyond that, Lamb has resisted temptation to embrace liberal orthodoxies, which makes great sense in a district where hunting is a way of life.

For example, on the issue of guns, Lamb announced that his priorities were enforcing existing laws, and keeping firearms out of the hands of criminals and the mentally ill. That wouldn’t play on Manhattan’s Upper West Side, but it’s good enough for government work in western Pennsylvania.

To be sure, the race is not lost for Saccone. History and demographics keep him in the game. The district is older and whiter than most, with minorities compromising less than 5 percent of residents. Clearly, it is not Coalition of the Ascendant Country, and nor for that matter is this Pennsylvania district a rerun of the Alabama Senate race, one that saw the Republican Roy Moore Roy Stewart MooreVulnerable Senate Democrat urges unity: 'Not about what side of the aisle we're on' Sessions hits back at Trump days ahead of Alabama Senate runoff Judge allows Roy Moore lawsuit over Sacha Baron Cohen prank to proceed MORE turn into a human spectacle.

Beyond that, the latest jobs report shows an economy that is “awfully strong” with “room to run.” A monthly jobs gain of 313,000 may be as good as any campaign ad. On top of that, the upcoming meeting between President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE and North Korean dictator Kim Jong Un may add a momentary patina of competence to an administration beleaguered by Stormy Daniels, and a West Wing under siege.

A Democratic win on Tuesday ought to make Paul Ryan Paul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE think of early retirement, while a Democratic loss should serve as a reminder that flipping the House is no easy task. In a matter of hours, we will know where things stand.

Lloyd Green was the opposition research counsel to the George H.W. Bush campaign in 1988 and later served in the U.S. Department of Justice.