Chart: Here are the tight margins for House and Senate races With control of Congress still undecided, several seats have yet to be called in the House and Senate — many with very tight margins as votes continue to be counted.

Here's how close the votes are for outstanding House and Senate races

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With control of Congress still undecided, several seats have yet to be called in the House and Senate — many with very tight margins as votes continue to be counted.

With the rise of mail-in voting, close margins, ranked-choice voting and runoffs, it will be a while before there are calls for all the seats. This is normal and expected.

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