Legal Question in Criminal Law in District of Columbia

Re: criminal or civil

No one, including the president, can be "brought up on charges by a U.S. citizen". Criminal charges are filed by prosecutors, not by private citizens.

The president can be sued civilly, however. You may recall that President Clinton was sued for sexual harassment while he was in office. He asked the Supreme Court to delay the case until he was no longer president so that he would not be distracted by the litigation, but the Court found that defending against the lawsuit was unlikely to interfere with his duties. That led to the deposition where he was asked about Monica Lewinsky. The rest, as they say, is history.

Bear in mind that the plaintiff in that lawsuit, Paula Jones, alleged that Clinton had personally harmed her. That he was the president had nothing to do with the allegations she made against him (whether she would have sued had he not been the president is another question). If the president hasn't done anything to you personally, any lawsuit you bring against him is doomed to fail. You can't sue because you dislike the way he performs his duties, so if that is what you have in mind you may as well forget about it.