According to Town Hall:
Republican Congressman John Ratcliffe didn't waste anytime with his brief, five minute questioning period and ripped Mueller for making up a standard of guilt only applicable to President Trump.Mueller also revealed that President Trump could be charged when he leaves the office. This because of the standard from the Justice Department not to indict a sitting president.
"Now your report, and today you said that “All times the Special Counsel team operated under, was guided by, and followed Justice Department policies and principles,” so which DOJ policy or principle sets forth a legal standard that an investigated person is not exonerated if their innocence from criminal conduct is not conclusively determined?" Ratcliffe said.
"Which DOJ policy or principle sets forth a legal standard that an investigated person is not exonerated if their innocence from criminal conduct is not conclusively determined? Where does that language come from, director? Where is the DOJ policy that says that? Let me make it easier, can you give me an example other than Donald Trump where the Justice Department determined that an investigated person was not exonerated because their innocence was not conclusively determined?" he continued.
"I cannot but this is a unique situation," Mueller responded.
However, Mueller never explicitly stated if Trump could be indicted.
The problem with the standard is we have never been told why this standard exists.