Think a blue wave is coming in the midterm election that will sweep out Republicans and usher in a Democratically-controlled Congress?

Don't bet on it, gamblers on at least one online betting site are saying.

The odds on MyBookie favor Republicans maintaining hold of their majority, even as political forecaster Nate Silver says there is an 84.9 percent chance of a Democratic victory.

As of Sunday, the odds of the GOP keeping the House are at -140. That means you would need to bet $140 on the Republicans to win $100 if they stay in the majority. The Democrats are at +110, meaning a $100 bet would win you $110 if the Democrats manage to wrest control of the House.

The site also has the Republicans favored to hold the White House in the 2020 presidential election. The GOP is at -170 in that race, compared to +130 for the Democrats.

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