Not a legal expert but you can broadly assume that if there is any leeway for Cannon to help Trump without losing her situation, she will. Clear example of a partisan judge.
No, because dismissing it could hurt trump. There’s no double jeopardy yet. They could refile, and if they do there is a chance they may get a less openly biased judge. What she will do is sit on this for a month thinking “real hard” about it. Then if he wins before the trial, he can just try to pardon himself and she will accept it.