They can’t afford to. They need to keep him there until the election. They are kind of stuck between a rock & a hard place. Elections have consequences. Stolen elections have very dire consequences.
I don’t mean to presuppose you missed my point, but it seems that no one wants to take on the mantle of responsibility. Not my specialty (journalism, investigative reporting) but there seems to be so much low hanging fruit that it should be easy pickings.
I do not buy into the fact that all journalists are tilted and tainted, but it does call into question their desire to do more work than what is required for a Google search.