(CNN) Today, we launched The Forecast.

We'll be letting you know, based on our data analysis, who is favored to win and lose in House and Senate races through the election. We'll be aggregating those individual estimates to forecast who has the best chance of controlling the House and Senate. These forecasts will be updated at least daily, so check back often!

Right now, the forecast points to a split in control of the next Congress. Democrats need a net gain of 23 seats to win back the House and are forecast to have a net gain of about 30. They need a net gain of two seats to win back the Senate, but, if anything, Republicans are more likely to gain a seat.

It's important to keep in mind that both of these results are within "the margin of error." That is, it's within our forecast that other possible outcomes could occur. Democrats may win both bodies of Congress, or Republicans could win both. We just don't think that is the most likely outcome.

Keep in mind this is the first time anyone at CNN has gotten into forecasting. This is an experimental product, not an official CNN forecast. We don't expect to get every race right. You can read more on our methodology here

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