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OKLAHOMA CITY - Just a day before Super Tuesday, Vermont Sen. Bernie Sanders could be poised to score a Sooner State victory over former Secretary of State Hillary Clinton.

A poll released Monday shows Sanders in the lead in Oklahoma's Democratic primary, with a five-point lead over Clinton. Sanders polled at 48 percent to Clinton's 43 percent. Another 8 percent said they were undecided, and 1 percent said they planned to vote for another candidate. Sanders' lead is within the poll's 5.7 percent margin of error.

Meanwhile, real estate mogul Donald Trump continued to lead the Republican field, with 35 percent. Texas Sen. Ted Cruz came in second, with 23 percent, and Florida Sen. Marco Rubio came in third, with 22 percent. The Republican poll has a 4.9 percent margin of error.

The survey of 703 Oklahoma likely voters was conducted by Monmouth University Polling Institute between Thursday and Sunday.