Odds are wildly fluctuating. Trump has been as high as 10/1, but he's currently 5/1. From what I can tell, he needs Arizona or Nevada, and is behind in both, though NV is very close. Either that or he needs a favourable recount in WI, which seems optimistic.

I'm going to stick my neck out and say that nearly all votes are legit, that any fraud is within normal margins and is probably negligible, but it's important that any credible claims of fraud are investigated. I mean, I wouldn't have wanted Brexit to happen as a result of direct voter fraud, like fake votes magically appearing. Biden supporters shouldn't want that either. Unknown powers deciding the result of elections is worse than a bad president.

I don't think any of the claims of fraud I've seen are credible, but it's not my job to decide that.