USA Today's editorial board is warning against the appointment of former Connecticut Sen. Joe Lieberman, a Democrat-turned-independent, to be the next FBI director in part because of his age.

President Trump described Lieberman as one of his top picks for the post, but USA Today said his candidacy "should raise eyebrows" because of his age.

"At 75, he is hardly of an age one would expect to start on what is normally a 10-year term," the editorial board said Friday.

In addition to his age, USA Today also said Lieberman lacks federal law enforcement experience, and said the job is one that shouldn't go to a professional politician. The board dismissed Lieberman and the other politicians on Trump's short list, which include former Oklahoma Gov. Frank Keating and former Rep. Mike Rogers, R-Mich.

"There is a reason for the lack of politics on the resume of past FBI directors," the editorial board said. "The position is one that needs to be free of party allegiances and even of an appearance of being beholden to presidents."

While some Republicans have said Lieberman is a decent pick, Democrats have indicated they are cool to the idea, in part because Lieberman left the Democratic Party in 2006 to run as an independent when he lost the Democratic nomination, and managed to keep his seat.