This being a poll, the most important information is the exact question they were asked. If you ask the same question in a different way, you can get wildly different results. I clicked through to the Reuter's link from this article, but I'm not sure it says the exact question.
From the graphic on that page, it says:
"The federal government is hiding information about Epstein’s alleged clients"
From Republicans, the "Yes" is 61% (I'm assuming this is a rounding issue with their software), and "No" is 17%.
So, strangely, the headline of this post and of the article that OP linked seem to be accurate, but if you read the content of that article, it's quite a bit less accurate. It's the opposite of what you normally expect from clickbait news articles.