Trump leads by double digits in Alabama, Oklahoma
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Donald TrumpDonald TrumpPoll: Voters think Trump tweets too much Pence: Flynn's son has 'no involvement' in transition process Pence: More names 'may well be added' to secretary of State list MORE holds double-digit leads over other GOP White House hopefuls in Alabama and Oklahoma ahead of Super Tuesday voting, according to two new Monmouth University surveys.

The GOP front-runner has a 23-point advantage among likely Republican voters in Alabama, topping Marco RubioMarco RubioSenate GOP to Obama: Stop issuing new rules Juan Williams: McConnell won big by blocking Obama The ignored question: What does the future Republican Party look like? MORE, 42 to 19 percent. Sen. Ted CruzTed CruzSenate GOP: National museum should include Clarence Thomas Senate GOP to Obama: Stop issuing new rules Week ahead: AT&T-Time Warner merger under scrutiny MORE (R-Texas) follows with 16 percent, while retired neurosurgeon Ben Carson has 11 percent support and Ohio Gov. John Kasich (R-Ohio) has 5 percent.

Trump's lead is 12 points in Oklahoma, where the real estate mogul commands 35 percent support compared to Cruz’s 23 percent and 22 percent for Rubio. Kasich ranks fourth with 8 percent, with Carson rounding out the field at 7 percent.

Trump would increase his voter support if Carson and Kasich dropped out, pollsters found.

About 46 percent of respondents said they would back Trump in Alabama in that scenario, with 27 percent supporting Rubio and 20 percent for Cruz.  

Approximately 36 percent would support Trump in Oklahoma in a three-way race, meanwhile, contrasted with 28 percent for Rubio and 27 percent for Cruz.  

Monmouth University questioned 450 likely GOP primary voters in Alabama between Feb. 25-28. Its survey has a 4.6 percent margin of error.

The margin of error in Oklahoma, meanwhile, is 4.9 percent.

Trump has an approximately 16-point edge over his Republican rivals nationwide, according to the latest RealClearPolitics average of samplings.