Senate Majority Leader Mitch McConnell doesn't mince words on his Democratic counterpart in his new memoir.

"Harry is rhetorically challenged. If a scalpel will work, he picks up a meat ax," McConnell wrote of Minority Leader Harry Reid, D-Nev., in an excerpt of his forthcoming book, "The Long Game: A Memoir." "He also has a Dr. Jekyll and Mr. Hyde personality. In person, Harry is thoughtful, friendly, and funny. But as soon as the cameras turn on or he's offered a microphone, he becomes bombastic and unreasonable, spouting things that are both nasty and often untrue, forcing him to then later apologize."

The Kentucky Republican noted a few instances of this behavior, including calling then-Federal Reserve Chairman Alan Greenspan "a political hack and later decided to enlighten a group of 60 students by calling President Bush a loser during a speaking engagement at their high school" in 2015.

"This lack of restraint goes against what is expected from a party leader, and I was skeptical, at best, about the direction of the Senate under his leadership," McConnell wrote.

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