go, come, etc. down to the wire

go, come, etc. (right) down to the ˈwire

(informal) if you say that a situation goes down to the wire, you mean that the result will not be decided or known until the very end: Most people are predicting a very close game, quite possibly going right down to the wire.
In this idiom, the wire refers to the finishing line in races.
See also: down, wire