Boss 302
Pursuit Driver
RCP does not do any polling. They compute an average from polls conducted by:I occasionally post from 538. It's an OK site, but not one of my faves. It's part of ABC news, so there's that.
I prefer RCP, them seem to be the least biased.
There are two more candidates in the race, West and Stein. Neither polling much (1-2 points each), but they are both pulling from the Dems.
Regardless...as I mentioned earlier, Trump would likely win, even if 2-3 points behind in the popular vote. Hillary beat Trump by 2.1% in the popular vote in the 2016 election. The Electoral Vote is what matters, and that will be decided by 7 states, all of which Trump has a nice lead in, except PA, which is neck and neck. But the current Electoral Map shows Trump winning by 29 EVs, even without PA.
Yes, things could change, and all these trials could factor into that. But for now, we can only wait and see what happens. Personally, I think most of them will either delay or fizzle. Most are on very weak legal grounds to begin with. I suspect the SCOTUS will rule at least somewhat in Trump's favor.
Bloomberg
Fox News
Marketing Resource Group (MRG)
Wall Street Journal
Mitchell Research and Communications
The Hill/Emerson
Quinnipiac
If you look at the results for each of these polls, some show Biden with a lead and others Trump, but all are within the margin of error. So, which of those polls is correct? The Michigan race with all the candidates shows Trump's margin over Biden declined.
You said because Kennedy is a Democrat, he is pulling more votes away from Biden. You forget the independent voters. They really don't care what party the candidate belongs to. That's where Kennedy is pulling votes away from Trump.