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]
(..) Orientation didn't begin at the beginning of the school year. - It began in the summer. - Let's just give Rick a chance to explain himself before we jump to any conclusions, all right? - So, Rick... - Yeah, all right. Explain. Explain to me. No, explain to me (..)2009 The Black Waters of Echo's Pond