The evidence suggests that he's to blame, but let's be careful not to 'jump to conclusions'. He may have a good explanation for what happened.
At this point, his victory seems to be a 'foregone conclusion'. [=his victory seems certain; there seems to be no doubt that he will win]
Most people felt that the outcome of the trial was a 'foregone conclusion'. [=they felt sure that the trial would end in a certain way]
(..) I promise you that. The cadet's logic is sound. And Lt. Uhura's is unmatched in xenolinguistics. We would be wise to accept her conclusion. Scan Vulcan space. Check for any transmissions in Romulan. Sir, I'm not sure I can distinguish the Romulan language from Vulcan. What about you? (..)2009 Star Trek