MINNEAPOLIS (AP) — A new poll shows Gov. Mark Dayton with a strong lead over Republican Jeff Johnson in his bid for a second term, but plenty of voters haven't made up their minds yet.

The poll for the Minneapolis Star Tribune has Dayton at 45 percent and Johnson at 33 percent, with a sampling error margin of plus or minus 3.5 points.

But the newspaper reports that 20 percent of those surveyed haven't decided who they will back.

Johnson says he knew going into the race that he'd have to raise his name recognition. At least one-third of voters don't recognize his name, compared to Dayton's 100 percent name recognition. But Johnson says the number of undecideds give him a plausible path to victory.