Just days before the Iowa caucuses, Republican presidential candidate Donald Trump has garnered a new high rating based on a fresh survey.

The survey conducted by CNN/ORC from Jan. 21 to 24 and released last Tuesday revealed that the real estate mogul reached the 40 percent mark for the first time in the polling, with a 41 percent support from likely GOP voters.

Trump's rival Texas Sen. Ted Cruz comes in second with only 19 percent. The rest of the candidates only had a single-digit rating. Florida Sen. Marco Rubio had eight percent; Ben Carson had six percent; former Florida Gov. Jeb Bush with five percent; and New Jersey Gov. Chris Christie with four percent.

Trump also dominates other polls as the Iowa caucus, happening on Feb. 1, is fast approaching.

In a poll from Monmouth University released on Wednesday, Trump is on the lead; but the competition between him and Cruz is rather close. Trump had 30 percent support while Cruz had 23 percent. Rubio had 16 percent and Carson had 10 percent, while the rest of the contenders had less than five percent support.

Meanwhile, in the Middle Tennessee State University poll results released Thursday, 33 percent of Republican voters would go for Trump and 17 percent would choose Cruz, WSMV-TV reported. But when it comes to general election polls, its' still a fierce competition between Trump and Hillary Clinton.

In the same poll, 47 percent of likely Democrats would want to elect the former Secretary of State. Her rival, Vermont senator Bernie Sanders had 15 percent support.

Trump and Clinton are the frontrunners of their respective parties, but according to the Tennessee poll, both also received a high disapproval rating. Among voters, Trump received a 41 percent disapproval rating and most of them were Democrats. On the other hand, Clinton has a higher disapproval rating at 65 percent and most of them were Republicans.