Trump has a 250k vote advantage in OH with 80% of the votes counted. And since the last votes counted are usually republican, I wouldn't bet Biden wins OH. Also whoever wins OH generally wins the presidency.
It's about the margin. It's an indicator for MI, WI, and PA. Remember that he won them all by less than 1% last time.
Trump pretty much has 270 EVs Unless one of the states that are already leaning in his direction flip, it's over. And lets not forget they called VA for Joe with 13 EV's and Trump is actually leading VA so they're going to have to give him those. Trump will get at least 283 EVs. Another 4 if you count RI which he is also leading in that was already called for Joe.
If you follow politics at all then you should know that Trump isn't winning RI. There's a 0% chance that happens. There's a better chance Biden wins AL. VA is almost certainly going to Biden too. That's >99%, but not quite 100% like RI.
Cinci only has 300k population. Trump is up 300k votes in OH so even if every single voter in cin voted for Biden, it still wouldn't be enough.