He just picked up a win in South Carolina on Saturday after winning in New Hampshire earlier this month.
Trump has a healthy lead in polls of the Nevada caucuses, which will take place Tuesday.
See more from from the Trump rally where the lights went out:
Then there are the states voting on "Super Tuesday," or March 1, when the primary will really pick up steam.
Of those 12 states, Trump led in Virginia, Georgia, Oklahoma, Massachusetts, Minnesota, Tennessee, Alabama, and Alaska, according to the RealClearPolitics average of recent polls there.
A Vermont Public Radio poll released Monday showed Trump was leading in Vermont as well, with a nearly 20-point lead.
Trump trailed in Texas and Arkansas to Ted Cruz, a Texas senator. He was also behind retired neurosurgeon Ben Carson in Colorado, though the only poll listed for that state was from November, when Carson soared to first place nationally.
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Trump's largest lead was in Massachusetts, where a recent Emerson poll showed the billionaire with a massive 34-point lead over Sen. Marco Rubio of Florida. There weren't any polls since last year for Alabama and Tennessee, where Trump also enjoyed large leads.
In addition to the states voting March 1, Trump held large leads in Michigan, North Carolina, and Florida, three states -- which all vote by mid-March -- that have more delegates to award than almost all of the March 1 states.
Trump has more delegates than his four remaining competitors do combined.
Though polls were relatively accurate in predicting Trump's victories in South Carolina and New Hampshire, such surveys don't capture the potential for new developments to shake up the race.
Polls can also be inaccurate. Trump was leading in almost all of the polls, including the one believed to be most accurate, before the Iowa caucuses at the start of the month. But he ended up losing the contest to Cruz.
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