Missouri's Tuesday night primary still hasn't been called. Here's why.

Two days after the polls closed in Missouri Tuesday night, there still aren't any official winners in either the Democratic or Republican presidential primary. And, Politico reports, it's not because all of the votes haven't already been counted:

Current results show Donald Trump leading Sen. Ted Cruz 40.9 percent to 40.7 percent. Hillary Clinton leads Sen. Bernie Sanders 49.6 percent to 49.4 percent.

Sanders' campaign says it is not yet at the point of making a final decision on whether to ask for a recount, though Sanders' chief strategist Tad Devine has said that "the difference could be a delegate in the end so it's not something that we feel a great urgency about."

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Cruz has yet to say whether he's looking into a recount, though the stakes are higher in the Republican primary. Although Missouri is not a winner-take-all state, nine of the delegates go to the statewide winner regardless of the winning margin.

Both Cruz and Sanders have some time to make up their minds, though: Missouri law stipulates that recounts cannot be requested until four weeks after the election, so it might be at least April 15 until we find out who won the state.