The most heated, vitriolic presidential nomination season in years is leaving one out of 10 Americans in the cold.

About 9 percent of voters said they didn’t learn anything about the presidential election from any of 11 major news sources, a Pew Research Center survey found, including 17 percent of those between ages 18 and 29.

And half of those voters think their vote won’t ­affect how the government works, the poll found.

Young adults are the most likely to ignore the 2016 election, according to the poll. Only 4 percent of Americans older than 65 said they did not know anything about the election from the news.

Of Americans between the ages of 18 and 29 surveyed, 17 percent said they did not learn about the election from any type of source.