Supporters of medical marijuana in Minnesota have released a television ad that attacks Gov. Mark Dayton for opposing the measure.

Dayton has said he would veto any bill legalizing marijuana for medical use, citing law-enforcement concerns.

But the 30-second commercial — scheduled to start running Thursday during “The Today Show,” “Good Morning America,” “Ellen” and “The View” — features a St. Paul mother who says her 5-year-old son, Paxton, has a serious seizure condition that was greatly improved when he used medical marijuana.

“When I found out Gov. Dayton is blocking a bill that would allow Paxton go get medical marijuana, I was shocked,” says Angela Garin in the ad.

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“Tell Gov. Dayton to support Paxton and stop blocking access to medical marijuana,” she says.

Garin was one of the advocates who met with Dayton at the governor’s residence in mid-March to seek his support.

Recently, Dayton denied that he’d urged families to buy illegal marijuana on the streets for medical use.