Complex sentence: Electoral fraud, election manipulation, or vote rigging is illegal interference with the process of an election, whether by increasing the vote share of the favored candidate, depressing the vote share of the rival candidates, or both.
Split into simpler sentences: Electoral fraud, election manipulation, or vote rigging is illegal interference with the process of an election. Acts of fraud affect vote counts to bring about an election result, whether by increasing the vote share of the favored candidate, depressing the vote share of the rival candidates, or both.