Doesn't look like Mitch had anything to do with it.
Conservatives accuse Mitch McConnell of 'Kentucky kickback' in spending deal - Kevin Robillard - POLITICO.com
The provision, which is supported by the White House and doesn’t actually spend any money, would raise the amount authorized for the Olmsted Lock and Dam project to $2.9 billion from $775 million. McConnell’s office said he had no role in securing the language, which was authored by Sens. Dianne Feinstein (D-Calif.) and Lamar Alexander (R-Tenn.). Versions of the water project measure passed both the House and Senate earlier this year.
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The Olmsted project is located about 20 miles from the confluence of the Mississippi and Ohio rivers near where the borders of Kentucky, Illinois and Missouri meet. It was originally authorized a quarter-century ago and was only expected to cost $775 million. After decades of delays, engineering mistakes and cost overruns, the Army Corps of Engineers now expects to spend $2.9 billion on the project.
But Alexander, the ranking member of the appropriations subcommittee that funds water projects, said he and Feinstein, the committee’s chair, were responsible for the provision.
“According to the Army Corps of Engineers, 160 million taxpayer dollars will be wasted because of canceled contracts if this language is not included,” Alexander said in a statement. “Sen. Feinstein and I, as chairman and ranking member of the Energy and Water Appropriations Subcommittee, requested this provision. It has already been approved this year by the House and Senate.”