`` Has a major American presidential candidate ever called their opponent '' `` the devil '' '' before Trump ? ''
The usual proportion for the width of key is . -LRB- a -RRB- d/8 . -LRB- b -RRB- . d/6 . -LRB- c -RRB- . d/4 . -LRB- d -RRB- . d/2 . ?