We’re watching the Alabama Senate results and the major networks and our friends at Decision Desk HQ all have Republican Roy Moore up by several points over Democrat Doug Jones, with about half of the precincts in.

So why hasn’t anyone called the race yet?

Two simple reasons.

First, Jones has outperformed his benchmarks in several key urban counties that are critical for Democrats, as Decision Desk points out:

Second, as is very common with election results, the metropolitan areas are some of the slowest to report, and those are the areas with the heaviest Democratic turnout. Until we see more complete results from the cities, Moore’s lead is not guaranteed to hold.

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It’s all about turnout. Stay tuned.

UPDATE — More from Decision Desk’s Twitter feed:

UPDATE #2 — Moore maintains a very narrow lead but there still are a lot of votes left to report in the metropolitan areas.

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