Here are a couple of good articles about Democrat apprehension for the 2020 Presidential election.
Biden is proving to be a doddering old dud who’s donations are drying up.
Warren looks good for the primaries, but is too liberal for the General Election- she’ll be another George McGovern. She has fallen into the Medicare for All trap and can’t get out of it. Medicare for All will cost her millions of Union votes. She is now refusing to discuss it or answer questions about it.