TIPPING THE SCALES
 To upset the balance of a situation, such that one
side or element is favored or gains advantage.

The two candidates are so close in the polls that both are
hoping for something that will tip the scale in their favor.
MORE LIKELY
 very probable or likely

It's more than likely that this problem will occur again
 probably

She will more than likely not get the job.
OFF THE MARK
 incorrect or inaccurate.

the accusation was a little wide of the mark
 a long way from an intended target.

his shot never is off the mark for long