Sen. Dianne Feinstein (D-CA) has yet to explain how a Chinese spy came to work for her for decades, including while she was chair of the U.S. Senate Select Committee on Intelligence.

Washington Post columnist Marc Thiessen, who has written a book about the CIA and often writes about foreign policy, national security, and intelligence.

In his latest column, Thiessen writes (original links):

Imagine if it emerged that the Republican chairman of the House or Senate intelligence committee had a Russian spy working on their staff. Think it would cause a political firestorm? Well, this month we learned that Sen. Dianne Feinstein (D-Calif.) had a Chinese spy on her staff who worked for her for about 20 years, was listed as an “office director” on payroll records and served as her driver when she was in San Francisco, all while reporting to China’s Ministry of State Security through China’s San Francisco Consulate. The reaction of the mainstream media? Barely a peep.

Feinstein acknowledged the infiltration but played down its significance. “Five years ago the FBI informed me it had concerns that an administrative member of my California staff was potentially being sought out by the Chinese government to provide information,” Feinstein said in a statement — which means the breach took place while Feinstein was heading the Intelligence Committee. But, Feinstein insisted, “he never had access to classified or sensitive information or legislative matters” and was immediately fired. In other words: junior staffer, no policy role, no access to secrets, quickly fired — no big deal.

But it is a big deal….

Feinstein owes the country a detailed explanation of how she let a Chinese spy into her inner sanctum. And the media should give this security breach the same attention they would if it involved Russia and the Republicans.

Read the rest at the Washington Post.

Joel B. Pollak is Senior Editor-at-Large at Breitbart News. He is a winner of the 2018 Robert Novak Journalism Alumni Fellowship. He is also the co-author of How Trump Won: The Inside Story of a Revolution, which is available from Regnery. Follow him on Twitter at @joelpollak.