Blasio knew gossip travels

Former Mayor Bill de Blasio didn’t trust his NYPD security detail to keep secrets, former campaign aide Lis Smith claims in her tell-all.

The political consultant unloaded a heap of criticism on de Blasio, who declined to hire her as his City Hall press secretary in 2013 after a media frenzy exploded over her affair with former Gov. Eliot Spitzer.

“He seemed obsessively paranoid; one morning as I sat in the seat behind him in the car with our NYPD detail, I received an email from him. ‘Watch what you say. This is not a secure space,’ ” Smith wrote of the ex-mayor in her memoir.

Smith was supposed to become de Blasio’s press secretary until The Post revealed that she was dating Spitzer, who infamously resigned as the state’s chief executive in 2008 amid a prostitution scandal. She had worked on Spitzer’s failed comeback bid to become the city comptroller in 2013, before joining de Blasio’s general election campaign for mayor.

Smith also dished about the former mayor’s temper in her 304-page tome, “Any Given Tuesday.”

“I was horrified by de Blasio’s behavior that I saw behind closed doors. He reamed out staffers for daring to speak within his earshot, humiliated his campaign body person for a small error in a briefing, and made a scene when he returned to his car from a press conference and found that his preferred coffee shop order — a double shot of espresso — was not piping hot,” she wrote.

De Blasio dismissed Smith’s insider account.

“In baseball terms, she was on the team for about a third of an inning,” he told The Post. “She was in and out in less than 90 days.”