The poll shows a large drop in support for LePage since their last poll, released about a month ago.
LePage earned support from 35 percent of respondents, Mitchell was at 32 percent and independent candidate Eliot Cutler had 21 percent, according to the automated poll, which did not ask respondents about independents Shawn Moody or Kevin Scott.
The last Rasmussen poll showed LePage at 45 percent and Mitchell at 27 percent.
The new poll, which surveyed 500 likely Maine voters, was conducted on Tuesday and has a margin of error of plus or minus 4.5 percentage points.
About 6 percent of respondents were undecided, according to the poll.
The Maine Poll results commissioned by MaineToday Media and executed by Critical Insights will be released later today.
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