(CNN) More than eight in 10 Americans say Muslims face at least some discrimination in American society, outpacing other major groups, according to a Pew Research Center poll out Monday.

More respondents -- 82% -- said Muslims face discrimination than said the same of other groups such as Hispanics and gays and lesbians. A slightly smaller percentage, 80%, said blacks face at least some discrimination.

The research comes after President Donald Trump tweeted about Rep. Ilhan Omar, a Minnesota Democrat, last week. The tweet included a video of a speech Omar gave last month discussing her views that Muslims are treated as second-class citizens. Footage from the September 11, 2001, terrorist attacks on the World Trade Center was spliced in with clips of the speech. Trump wrote, "We will never forget!" as a caption.

The tweet was seen by many as an attack on the Muslim community. Omar said she has received more death threats after that tweet . The poll was conducted before the tweet.

Three-quarters of Democrats and Democratic-leaning independents now say that there is a lot of discrimination against Muslims, up from 56% in 2013 and Republicans and Republican-leaning independents remained about the same over that time, from 31% in 2013 to 34% now.

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