After three of Virginia's Democratic House incumbents were swept away in Tuesday's massive Republican wave, Rep. Gerry Connolly (D-Va.) is still hanging on by a thread Wednesday.

Connolly ended Tuesday with just a 487-vote lead over Republican challenger Keith Fimian. But after votes from another two precincts were counted Wednesday, Connolly expanded that razor-thin margin to 921 votes. 

Democrats appear hopeful Wednesday that Connolly's seat will remain in the Democratic column, noting that a lead of almost 1,000 votes is tough to overcome in a recount. 

Still, in a statement Wednesday, the Fimian campaign expressed confidence that the Republican would end up on top when all is said and done, and alluded to the possibility of a recount, which Fimian's campaign would have to request.  

Fimian campaign spokesman Tim Edson said in a statement, "it is important to take the time to get the result right by seeing the counting and canvassing process through." 

According to state elections officials, Fimian can request a recount if the margin is less than one percentage point. The Republican would have to do so by Nov. 22.  

If his lead holds, Connolly would be the lone Democrat of four GOP targets in the state Tuesday to survive. Reps. Rick Boucher, Tom Perriello and Glenn Nye were all washed out by Tuesday's wave.