Who am I?

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Across
  1. 2. unnatural color for skin
  2. 5. unfaithful to spouse; needs to win
  3. 7. opposite of skinny
  4. 8. admires self excessively
  5. 11. Benedict Arnold
  6. 12. House of Representatives' job
  7. 13. opposite of brave
  8. 14. targets perceived weaker people
Down
  1. 1. snake oil salesman
  2. 3. sexual _____
  3. 4. ______ dodger
  4. 5. Senate's job
  5. 6. working with foreign enemies
  6. 9. crook
  7. 10. no remorse or conscience
  8. 15. perpetually doesn't tell the truth