The Minnesota DFL Party is releasing a television ad hamming Republican candidate for governor Jeff Johnson on education.

The ad is part of $1 million ad campaign the party is planning to support DFL Gov. Mark Dayton's re-election.

The DFL's television campaign is one of the largest so far in the low-profile governor's race.

Dayton has reserved ad time for later this month. Johnson, whose campaign has had less money in the bank, said over the weekend that he hopes to be on the air as well by the end of the this month.

The DFL ad gives the appearance of a positive ad, featuring happy music and parents talking about education, but attacks Johnson largely on decade-old votes he took in the Legislature and praises Dayton.

"It seems like schools are not Jeff Johnson's priority," Jennifer Nelson, a teacher who is clearly pregnant, says in the ad.

Johnson, who is now a Hennepin County commissioner, served in the Minnesota House from 2001 to 2006. When he first joined the Legislature he had said that education was one of his top priorities.

It still is a top priority, Johnson communications director Jeff Bakken said.

"Unlike Mark Dayton, Jeff was educated entirely in Minnesota public schools and his kids are being educated entirely in Minnesota public schools," Bakken said. "Jeff repeatedly voted to increase education funding as a legislator. Like most Minnesotans, Jeff also knows that there is a lot more to education than just spending."

Earlier this month, big spending Alliance for a Better Minnesota also released a television ad hammering the Republican candidate on education.

That the two Democratic groups picked the same issue to blast over the airwaves should be no surprise.

For years, Democrats have participated in a polling and research consortium, called Project Lakes and Plains, that allows them to share information.

The result is they read from the same playbook and that playbook says in the midterm election that Minnesota voters care deeply about education issues. By July, Minnesota Democratic campaigns had paid Project Lakes and Plains nearly $200,000.

It is not clear whether the Minnesota Republican Party, which is still recovering from a previous administration's debt, will run any television ads this year on Johnson's behalf.

Last week, Republican Party spokesman Brittni Palke, said: "The MNGOP will not be announcing an ad buy." But did not clarify whether that statement means the party would not announce an ad buy in advance or would not make an ad buy this year.

Here's the new DFL ad:

Updated

Data editor Glenn Howatt contributed to this report.