A majority of American voters — 55 percent— say Russia hacked the 2016 presidential election and more than 70 percent of those who believe the Kremlin meddled did so to help propel Donald Trump to the White House, a new poll out Friday shows.

A majority also support President Obama’s leveling of sanctions against Russia for its interfering in the election by 53 to 34 percent, according to a Quinnipiac University survey.

But that breaks down by political party, with 79 percent of Democrats approving of sanctions, compared to only 29 percent of Republicans.

And nearly 80 percent of Democrats surveyed believe Russia butted in the election, while only 29 percent of Republicans thought so.

And more than eight out of 10 of those polled say the results of investigations into the Russian hacking should be made public, the survey said.

About half say the president-elect is “too friendly” with Russian President Vladimir Putin, with another 40 percent saying he’s taken the “right attitude,” and 4 percent seeing him as “too unfriendly.”

“It’s not nyet. It’s yes, yes and yes, American voters say. Yes – the Russians did it. Yes – they should be punished for it. And yes – President-elect Donald Trump is too cozy with Moscow,” said Tim Malloy, assistant director of the poll.