Trump on Super Tuesday 2018: 'So much for the big Blue Wave'

President TrumpDonald John TrumpTrump: Dems playing destructive 'con game' with Kavanaugh Several Yale Law classmates who backed Kavanaugh call for misconduct investigation Freedom Caucus calls on Rosenstein to testify or resign MORE in a tweet early Wednesday claimed victory after Republicans secured spots in major California races this November.

In a tweet, the president mocked reports of Democratic Party strength heading into the midterm elections, predicting a "Red Wave" of GOP victories instead.

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"Great night for Republicans! Congratulations to John Cox on a really big number in California. He can win. Even Fake News CNN said the Trump impact was really big, much bigger than they ever thought possible. So much for the big Blue Wave, it may be a big Red Wave. Working hard!" Trump tweeted.

Trump's tweet comes hours after businessman John Cox (R) secured a runoff slot against Lt. Gov. Gavin Newsom (D) in Tuesday's primary. 

Republicans also locked Democrats out of at least one House race, in Rep. Paul CookPaul Joseph CookGOP House candidate once called Obama a secret Muslim who sympathizes with terrorists: report Overnight Defense: VA pick breezes through confirmation hearing | House votes to move on defense bill negotiations | Senate bill would set 'stringent' oversight on North Korea talks Stop foreign outsourcing of government travel: How a GSA decision is costing American jobs, harming our military MORE's (R) district, and the plethora of GOP candidates remaining on the ballot for November could mean a higher turnout among Republican voters in the state later this year.

Democrats secured their own victories Tuesday night, however, scoring at least second-place finishes in every race they targeted.

California is home to 10 of the most competitive House races this November, as Democrats try to overcome a 23-seat deficit and retake control of the lower chamber. The latest CBS News–YouGov Battleground Tracker shows the Democrats with a slight advantage over Republicans currently for control of the House, well within the poll's margin of error.

Updated at 10:34 a.m.