Polls and partisan identification / Election overtime

I just wanted to put in a quick plug for today's post on Electoral Vote, because it's particularly interesting. The Votemaster explains disagreements in the polling field about how (or whether) to adjust for partisan identification. This is good stuff to know, because it explains why national polls from different organizations can vary so wildly. He also does a "what if?" about what could happen if the electoral college ties, 269-269. It turns out it could go either way — and one possible scenario might have Joe Biden as acting President. Check it out.