The person, not the campaign. Besides, he's under investigation now for firing Comey… although not much to investigate when you admit committing crimes on TV.
No laws have been broken by Trump. Hillary Clinton & co. on the other hand have broken _many_ at an egregious level. Lynch and Mueller should similarly be under investigation for covering up crimes as well.
https://twitter.com/realDonaldTrump/status/87570147199986483...