The governor, who is term-limited, made the announcement Thursday in a news release.
“While Crissy and I will always be grateful for all of the encouragement and support to run for the United States Senate, I am announcing today that I will not be a candidate for Senate in 2018," Haslam said in a statement.
"The primary reason is that I want to remain completely focused on my job as governor. I know that being a candidate for the Senate during my last 15 months as governor would be a distraction from the task at hand."
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