In the United States the political center elects the president.
Democrats and Republicans have less input in a presidential election than any other type of campaign.
About 30% of the people who vote are considered the center, they are either independents ir they are registered dems or reps they just "switch" to the other party's candidate for their own reasons.
These are the people who "elect" the US president. Don't believe me, look at the two party's tactics during the process. Your democratic candidate will play to the left and extreme left as that is how you win primaries with hard core party delegates.
The Republican will kiss rightist and fundamentalist religious butt for the primaries and then?
Both presidential candidates will run "to the center" like their lives depended on it....because they do.
Biden: "Do I look like a communist?"
The center elected Trump as Clinton was the wrong choice by the party...she appealed to "party" democrats, but the center disliked her so much Trump won. Whose fault was that? They let a TV star with mental problems win the office? Then you blame your problems on him? You put him there. Clinton couldn't even beat Sanders she was such a weak candidate.
A viable democratic candidate must appeal to the center because that's who picks the winner.
Will Trump beat Biden? I simply can't see how. If you study the electorate's perception of each man it isn't that hard to figure out.
Trump is imbalanced and unpredictable.
Biden is "old Joe" our long term VP who has a smile for everyone.
Cheez, even the oil people and the market traders are ok with Biden.
You follow pro sports and you don't follow the US presidential race odds in London?
At Betfair yesterday a guy walked in and put $500,000 on Biden. (largest bet on a president at Betfair ever)
The payout? - $775,000 (I don't know where the euro key is)
It may not be the Chiefs giving the Jets 19 1/2 in the NFL, but, 1.5 is a significant favorite.