From the article:
“Voters in 11 battleground states key to controlling
the Senate in 2018 and presidency in 2020...”
“The survey polled voters in Florida, Indiana, Kentucky,
Michigan, Missouri, Montana, North Dakota, Ohio,
Pennsylvania, West Virginia, and Wisconsin.”
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There is no U.S. Senate election in Kentucky in 2018.
hmmm. I wonder if I can contact the author.