Republican presidential candidate Donald Trump points as he speaks during a rally Sunday, Feb. 28, in Madison, Ala. | AP Photo Polls: Trump winning in Alabama, Oklahoma Clinton leads in Alabama, while Sanders holds a slim lead in Oklahoma

Ahead of Super Tuesday, Donald Trump holds strong double-digit leads in the solidly Republican-majority states of Alabama and Oklahoma, according to the results of the latest Monmouth University polls from both states released Monday. Among likely Democratic primary voters, Hillary Clinton is head and shoulders above Bernie Sanders, but in Oklahoma, the race is within the margin of error, with Sanders holding an advantage.

In Alabama, where Trump on Sunday held a rally to announce the endorsement of Sen. Jeff Sessions, the real estate magnate has the support of 42 percent of likely primary voters. In second place is Florida Sen. Marco Rubio with just 19 percent, followed by Texas Sen. Ted Cruz at 16 percent, Ben Carson at 11 percent and former Ohio Gov. John Kasich at 5 percent.


Trump holds a wide advantage among evangelical voters in Alabama, leading with 43 percent to Rubio's 18 percent and Cruz's 15 percent, and he is statistically tied with Cruz with that group in Oklahoma, grabbing 29 percent to the Texas senator's 28 percent and Rubio's 21 percent.

Likely primary voters in Oklahoma opted for Trump as well, though his margins were smaller. In Oklahoma, Trump earned 35 percent, compared with 23 percent for Cruz, 22 percent for Rubio, 8 percent for Kasich and 7 percent for Carson. Majorities of GOP voters in both states indicated they had either made up their mind or had a strong preference toward a particular candidate, with smaller shares of respondents having already voted. Of those who indicated that they will be voting for Trump, a full 60 percent in both states said they are completely decided on Trump.

Voters in both states also dismissed the impact of New Jersey Gov. Chris Christie's endorsement of Trump, with 74 percent in Alabama and Oklahoma saying it would not influence their decision on Tuesday.

In the Democratic race, Clinton holds a comfortable lead of 71 percent to 23 percent over Sanders in Alabama, while the Vermont senator leads her 48 percent to 43 percent in Oklahoma. Just 6 percent are undecided in Alabama; 8 percent are undecided in Oklahoma. Like their Republican counterparts, majorities of likely Democratic voters in both state said they have completely decided or had a strong preference toward the candidate they are currently supporting.

Clinton trails Sanders by seven points among white voters in Oklahoma but leads him by 22 points with that same group in Alabama. Among African-American voters in Alabama, Clinton holds a commanding lead of 80 percent to 12 percent.

Monmouth conducted the polls via landlines and cellphones from Feb. 25-28, drawing from a list of registered voters who participated in a primary in either 2012 or 2014 or who voted in the last two general elections and said they would do so this year. The sample of 450 likely Alabama Republican primary voters carries a margin of error of plus or minus 4.6 percentage points, while the sample of 300 likely Democratic primary voters in the state has a margin of error of plus or minus 5.7 percentage points. In Oklahoma, the sample of 403 likely Republican primary voters carries a margin of error of plus or minus 4.9 percentage points, while, as in Alabama, the sample of 300 likely Democratic primary voters in the state carries a margin of error of plus or minus 5.7 percentage points.