go as far as to (do something)

go as far as to (do something)

To do something extreme, risky, or controversial. Often used in the negative. Although I wouldn't go as far as to call him a coward, he definitely likes to avoid confrontation when he can. They went as far as to threaten us with legal action if we didn't delete the video in question.
See also: far

go so far as to

Also, go as far as to. Proceed to the point of doing something. For example, I wouldn't go so far as to call him incompetent, but he does need supervision, or Would she go as far as to sell the house before she's found another?
See also: far