篡改

grossly/seriously misrepresent

doctor the evidence

cook the books; tamper with/falsify/doctor/manipulate the accounts; fiddle (with)/juggle the accounts

falsify a will

adulterate a principle

tamper with one's teachings

cook the statistics

juggle the figures

distort/doctor/falsify the facts; distort the truth

tamper with/juggle/distort history

distort a theory

falsify the records; tamper with the minutes

distort one's point of view; misrepresent one's view