What does the idiom in this text suggest?
Mr. and Mrs. Underwood usually see eye to eye, but not when it comes to the controversial mayoral race.

 - Mr. and Mrs. Underwood look each other in the eye.
 - Mr. and Mrs. Underwood usually agree.
The text uses an idiom, an expression that cannot be understood literally.
The idiom see eye to eye suggests that Mr. and Mrs. Underwood usually agree. When you see eye to eye with someone, you share their opinion.