Throughout this 2017 NFL season, television ratings have declined and fans, TV pundits, and reporters have speculated as to the biggest cause. On social media, many people railed that players protesting during the national anthem led outraged Americans to boycott.

A new survey from SurveyMonkey and Ozy Media, shared first with Yahoo Finance, finds that 33% of NFL fans boycotted the league this year—but not entirely because they were outraged by the player protests. Nearly equal proportions boycotted in support of Colin Kaepernick or the protests as boycotted in support of President Trump, who vocally opposed the protests.

The survey, conducted from Dec. 8—11 of 2017, polled a national sample of 1,726 adults ages 18 and up. It found that 1,233 of those people identifed as football fans.

The survey then asked the football fans: “Did you purposely stop watching or attending NFL games this season for any reason?” 33% of respondents said yes.

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