I think Hillary would be easier to beat.
But, Biden is an old fool, and a walking gaffe machine, and Warren is just as loony left as Sanders.
I could picture Trump running an ad showing Biden talking about how in 1929, President Roosevelt got on TV to reassure the American public after the stock market crash. That’s from the 2008 campaign. How about an ad featuring Warren claiming to be an Indian.
Still, he ran circles around Paul Ryan.
Biden was simply a tool to convince whites and Catholics that they could vote for the anti-white, anti-Catholic party - and it worked. I doubt they’ll get any white guys’ votes anymore, but that group has shrunk considerably - Obama showed twice that Dems don’t need them. A white “Catholic” woman would serve the Dems better than Biden could.