Republican presidential candidate Donald TrumpDonald John TrumpTillerson: Russia already looking to interfere in 2018 midterms Dems pick up deep-red legislative seat in Missouri Speier on Trump's desire for military parade: 'We have a Napoleon in the making' MORE is holding a rally in Las Vegas on the eve of the GOP caucuses. 

The event is set to start at 10 p.m. Eastern. 

Watch the event live in the video above.