changes for the better would be welcomed by nearly anyone, anywhere. knowing this, political opponents strive to illuminate all the bad that exist today and contrast it with the good that will come if only they are elected.

밑줄 친 문장.. 해석은 되는데 무슨 내용인지 모르겠어요 ......
이게 도대체 무슨 뜻이예요 ?? ㅜㅠㅜㅠ
친절한 답변 부탁드립니다. ^^