If a Biden/Harris ticket fails to win ...

[Anzeigenhauptmeister]

... what will be the Democrats' strategy for 2024?

A Biden/Harris ticket seems to be the most plausible currently. But what if they cannot win against Trump? What will have been the reason for not not convincing enough voters?

[TML]

This ticket will probably be viewed by Bernie Sanders disciples as pro-establishment, which is their primary explanation for the Democrats' 2016 loss. In fact, one prominent political commentator has stated that the only way Democrats can lose 2020 is by running another pro-establishment candidate.

[Mr. Morden]

... what will be the Democrats' strategy for 2024?

What do you even mean by "strategy for 2024"?  The party typically doesn't collectively think strategically like that.  Whoever wins, wins.

[Anzeigenhauptmeister]

... what will be the Democrats' strategy for 2024?

What do you even mean by "strategy for 2024"?  The party typically doesn't collectively think strategically like that.  Whoever wins, wins.

Don't you think the party will consider why two Democratic tickets - both considered very capable, and one even very popular - lost against a very unpopular, controversial and incapable Republican and think about what they could do better?

[P. Clodius Pulcher did nothing wrong]

... what will be the Democrats' strategy for 2024?

What do you even mean by "strategy for 2024"?  The party typically doesn't collectively think strategically like that.  Whoever wins, wins.

Don't you think the party will consider why two Democratic tickets - both considered very capable, and one even very popular - lost against a very unpopular, controversial and incapable Republican and think about what they could do better?

If Democrats nominate someone who is both capable and well-liked, AND still lose to Trump, then the problem isn't with Democrats, it's with American voters.

[Mr. Morden]

... what will be the Democrats' strategy for 2024?

What do you even mean by "strategy for 2024"?  The party typically doesn't collectively think strategically like that.  Whoever wins, wins.

Don't you think the party will consider why two Democratic tickets - both considered very capable, and one even very popular - lost against a very unpopular, controversial and incapable Republican and think about what they could do better?

What I mean is that it's a reach to suggest that the parties think strategically like that.  Even when they "anoint" someone, like the Dem. elites did for Clinton in 2016, it happens as a consequence of polling.  Party elites rallied around her because they thought she was going to win the nomination anyway.  Maybe they'll rally around someone new in 2024 if they lose in 2020, but it'll most likely again just be a consequence of following whatever the polls at the time say will happen, as opposed to some well thought out strategy.

The strategy is more likely to come from the candidates themselves.  If Biden blows a winnable election, then the candidates in the next cycle will try to avoid whatever mistakes he's thought to have made.  But that's different from using strategy to pick who to nominate in the first place.

[Rookie Yinzer]

If Democrats nominate someone who is both capable and well-liked, AND still lose to Trump, then the problem isn't with Democrats, it's with American voters.

[Mr. Morden]

Of course, even if the Dems nominate a "good" candidate, if they lose the general election, people will retroactively look at them as a bad candidate.  No one who loses the general election ends up looking "good" in retrospect.