The Hatch Act is not my favorite law, but sometimes bad law can be put to good uses. In 1939 the act was passed to prevent federal government employees from engaging in "pernicious political activity." It was actually inspired by the use of government employees to intimidate voters on behalf of certain candidates, but over the years it's meant that federal government employees cannot drive to work in Washington, D.C. with bumper stickers for candidates for federal office.
Over the years, there have been some questions about its implied restrictions of freedom of speech for the employees, but in the Case of James Comey, current director of the FBI, it should be used to send federal officers to his office and slap him in hand cuffs for trying to perniciously sway a federal election by insinuating Hillary Clinton is under investigation as a crook, when in fact it is the director and his underlings who have violated the law.
The really sleazey part of Comey's actions is that he did not have to accuse Ms. Clinton of anything. He only had to say, "She's under investigation, or maybe not, again."
So, yes. Let the Attorney General send some officers, preferably not FBI agents--with all the police agencies in Washington, D.C., they ought to be able to find somebody carrying handcuffs, who knows how to use them.