Is Dianne Feinstein the Most Corrupt Senator in the United States?

Is Dianne Feinstein the Most Corrupt Senator in the United States?:

To date, only one fairly obscure member of Congress has asked our intel people—in this case, the FBI--to look into the alarming case of a Chinese agent becoming her office manager and personal chauffeur. An excerpt from Rep. Jim Banks’ letter to FBI Director Wray:
It has recently come to light that U.S. Senator Dianne Feinstein, the former chair of the Senate Select Committee on Intelligence, employed a staff member who was using his position to secretly report information to the Ministry of State Security in China. Given the type of information Senator Feinstein had access to and China’s position as a top foreign adversary of the United States, this revelation is alarming.
The Chinese agent is apparently working without annoyance in California. Feinstein is running for reelection. I wonder if he is planning to vote for her.