When? And how does that mean the Democrats have no chance? Are you assuming its a mathematical formula? Did you know that undecided's almost always historically break against the incumbent.
This is when:
Poll: Clinton leads by 12 points - POLITICO
https://www.politico.com › 2016/10 › clinton-trump-poll-abc-news-230199
Oct 23, 2016 - Hillary Clinton has opened up a 12-point advantage over Donald ... just 39 percent of likely voters think Clinton winning through vote...”
The phony impeachment with no crimes committed is proof that the Democrats have concluded that the only way to win in 2020 is through impeachment.
They will lose to Trump...again.