The New York League of Conservation Voters is beginning its final push for Sen. Mark Grisanti, with a media and mail blitz that prominently features Gov. Andrew Cuomo.

The expectation the group will ultimately spend at least $600,000 on the state Senate race.

Meanwhile this week, the group received a $200,000 contribution from the Independent Democratic Conference’s political action committee — bringing its total spending for the league’s efforts to $350,000.

The NYLCV on Thursday is releasing a new television ad — which mentions Cuomo twice and features his image.

In the 30-second commercial, Grisanti is praised for supporting the creation of a medical marijuana program as well as a ban on toxic chemicals in children’s toys.

The spot also reminds voters that Grisanti is on the Independence Party ballot line after losing the Republican primary last month to Kevin Stocker.

“When working families in Buffalo needed a real jobs plan for Buffalo, we always knew where to find Mark Grisanti, who Gov. Cuomo thanked for his leadership on UB2020 — and that’s why we thought we’d help you find Mark Grisanti on the ballot,” the ad’s narrator says. “Yup, 11E, in the Independence column starting with Governor Cuomo. Independence does exist, you just have to know where to look for it.”

In addition to the TV ad, the League of Conservation Voters reported a $100,966 mail campaign on Grisanti’s behalf.

The mailer calls on voters to “support the home team” of Cuomo, his running mate Kathy Hochul and Grisanti.

Cuomo’s picture is featured on the mailer and features a quote from the governor praising Grisanti.

The governor was endorsed by the NYLCV previously, but his appearance in the pro-Grisanti push is interesting, given his ties to Buffalo, alliance with Grisanti and stated support for a Democratic Senate.

Cuomo is yet to say whether he’ll endorse Grisanti, the last remaining Republican in the state Senate to have supported the legalization of same-sex marriage in 2011. Grisanti also backed Cuomo’s signature gun-control law, the SAFE Act.

Nevertheless, Cuomo has stepped up his criticism in recent days of the New York State United Teachers union, which is supporting Grisanti’s Democratic opponent, Marc Panepinto through its VOTE-COPE political action committee.

Cuomo allies have been funding the League of Conservation Voters’ independent expenditure campaign including Laurence Rockefeller.

In addition to its support from the IDC, the group has received a $350,000 contribution from former New York City Mayor Michael Bloomberg.

Speculation grew earlier last month that Grisanti would join the IDC if he wins next week after it was reported he met with the breakaway conference’s leader, Sen. Jeff Klein.

Grisanti was endorsed by Senate Republican Leader Dean Skelos, but the conference’s campaign committee did not transfer any money to Grisanti’s campaign.

Grisanti Mailer by Nick Reisman