fudge the issue vs sit on the fence

fudge the issue

verb
  • Adopt a solution to a specific problem which does not address the larger, more general problem of which the specific problem is an instance. 

sit on the fence

verb
  • To remain neutral on a certain topic, to not have a stance or opinion. 

How often have the words fudge the issue and sit on the fence occurred in a corpus of books? (source: Google Ngram Viewer )