President Trump is holding a rally Monday evening in support of Sen. Ted Cruz, R-Texas, who is seeking re-election this year.

The "Make America Great Again" rally is taking place at the Toyota Center in Houston and is slated to start at 6:30 p.m. local time (7:30 p.m. ET).

Cruz faces Rep. Beto O'Rourke, D-Texas, in the midterm contest, which will take place on Nov. 6.

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O'Rourke has been competitive in some polling in the deep red state, and has put up strong fundraising numbers. A RealClearPolitics polling average shows Cruz has a 7-point lead in the first two weeks of October.

[READ ALSO: The Trump-Cruz insults you won't hear at the rally]

Trump's re-election campaign claimed the event drew interest from more than 100,000 people and supporters were lining up a day before the start of the event.

Trump's rally comes just a couple hours after his predecessor, former President Barack Obama, held a campaign rally for Democrats in Las Vegas.

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