General Discussion

Most deadlines are coming up in a month or so, but have very low signature thresholds.

The biggest obstacle will be California and Florida, where he has to get 196,964 & 132,781 by 8/7 and 7/15 respectively.

He's not going to win, even if he were to seriously run. But let's pretend he does run. The only states I am concerned over are:

Arizona (117,000ish, as it's 3% of registered voters and currently there's 3,929,260 registered voters by 9/4)
Florida (already mentioned, he has a week to get 132,781 signatures)
Michigan (30,000 signatures by 7/16)
Nevada (9.608 signatures by 8/14)
New Hampshire (3,000 signatures by 9/2)
Ohio (5,000 signatures by 8/6)
Pennsylvania (5.000 signatures by 8/3)
Wisconsin (2,000 signatures by 8/4)

If he does run, he should easily get ballot access in Nevada, New Hampshire, Ohio, Pennsylvania and Wisconsin.

My guess is that would be enough to flip those states to Trump.

Or at least make Nevada extremely close.

Ohio is a state Biden can afford to lose.

But if he loses Michigan, Pennsylvania, Wisconsin and New Hampshire, and we assume Kanye doesn't make the ballot in Arizona, though, we'll see, Biden will need to win Florida + Arizona + all of Maine's 4 Electoral Votes (to tie, which sends it to the House, which elects Trump since it's unlikely the Democrats will have a majority of the congressional delegations even after November) + one congressional district from NE to win (or he can win via Texas).

IF Kanye is serious, this obviously helps Trump significantly.