ATLANTA - Georgia voters are on track to endorse the national poll leaders in the presidential primary contest a week before the state's primary.

Donald Trump and Hillary Clinton have big leads, according to a survey released Tuesday, and Florida Sen. Marco Rubio has maintained his second place spot that he claimed from Texas Sen. Ted Cruz in the South Carolina primary on Saturday.

The poll was conducted for Morris News Service and Fox 5 by Opinion Savvy among likely voters or those who have voted early.

The Georgia primary is Tuesday.

Trump, the billionaire real-estate mogul, holds a 12-point lead over Rubio. One out of three Republican voters support Trump.

Rubio claims 22 percent to 20 percent for Cruz, which is essentially a tie when considering the poll's 3.6 percent margin of error. That margin also shows an effective tie between Ohio Gov. John Kasich's 9 percent and retired neurosurgeon Ben Carson's 8 percent. The remaining 7 percent are undecided.

On the Democratic side, Clinton, the former secretary of state, has 57 percent among likely voters or those who have voted early compared to 29 for Vermont Sen. Bernie Sanders. The margin of error is 4.4 percent.

The undecided voters are 14 percent.

Veteran pollster Matt Towery says Georgia voters are falling into a pattern.

"On the Republican side, the race seems to mirror the vote in South Carolina. Once again, Trump leads Cruz among evangelicals and leads among older voters with Rubio leading among the youngest of voters and Trump right behind him," Towery said. "On the Democratic side, Clinton has a huge lead among African-American voters and older Democrats. Sanders is winning the age 30 to 44 contest but by just a few points. The youngest of voters (18-29) are going Sanders by a wide margin."

Towery says Trump supporters are as strongly committed, with many of them already having voted early.

"It should be noted however, that since Jeb Bush appears on the ballot, he may still receive or have already received votes that might lower the various candidates' final percentages," Towery said. "That would likely assist Mr. Cruz in an attempt to take second place given that many Bush supporters are expected to move to the Rubio camp. However, the impact should be negligible."

Clinton appears to have the race sewn up, according to Towery. The Southern states are effectively serving as her "firewall" because African-American majorities there in the Democratic primaries strongly support her.