Gerymandered or Gerrymandered: How To spell?
The word Gerymandered is misspelled against Gerrymandered, which is past tense of "Gerrymander"
Gerrymandered has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings ge & ymandered which should not be misspelled with single 'R'
Wrong Spelling:  ge-r-ymandered  Correct Spelling:  ge-rr-ymandered 
Explore spell check of Gerrymandered to spell without errors.