Three responses from previous debates that will work against Trump:

[kentuck]

"There he goes again", when he tells an obvious lie. Which he will because he can't help himself.
It is an old quote from the Reagan/Carter debates.

"Where's the beef?", asked by Walter Mondale to Gary Hart. It totally disarmed Hart and may have helped Mondale get the nomination? Biden can use this line when Trump starts bragging about his wall.

"Mr Trump, you are no Abraham Lincoln", paraphrasing a LLoyd Bentsen quote directed at Dan Quayle, when Quayle tried to compare himself to JFK.

I am sure there are others that would be equally effective.

[Mike 03]

1. Remember when Gore debated Quayle and Stockdale?

A good comeback for ridiculing someone for taking credit for someone else's accomplishment:

Gore: (I can't recall exactly, but it was something like this: ) Your administration taking credit for the fall of the Soviet Union is like a rooster taking credit for the sunrise.

I always loved that one.

You could fill it in like this: Trump taking credit for the Obama economy is like a rooster taking credit for the sunrise.

[kentuck]

3. That would work.

Biden should be prepared for his lies and distortions.

[pamela]

2. Biden should say, "I knew Abraham Lincoln...

...Abraham Lincoln was my friend. You, sir, are no Abraham Lincoln. "

[chriscan64]

4. Not based on any of those classics

but I would ask, "Based on what evidence?" or "Which people are saying?". In general, make him go into detail about the underpinnings of his assertions. There are none. If he doesn't like something, it is a "disaster" without rationale about why it is so.

[JHB]

5. "What's the nuclear triad?"

[JHB]

6. None of those will be effective.

The ones that will be effective are the ones that nonchalantly treat him as a nobody. Nobody to take seriously, nobody to fear.

Taking the sort of things he did at the debates with Hillary, and without any comment on how she handled them, the thought that came to my mind (from my comfortable, under-no-pressure chair) were...

When he loomed: "Donnie, if you're going to stand back there huffing and puffing...
... could you at least do it a little closer? I think my jacket has a wrinkle that needs steaming out."


For some of his other antics: briefly pause in the middle of your talk, nonchalantly turn toward him and in a calm, curious voice ask "Donnie, what are you doing to that chair?" And then, without even waiting for an answer, turn back and pick up where you left off.

[kentuck]

7. If he brings up Abe Lincoln...

I think the Lincoln response could work.

[JHB]

8. Depends on how he brings Abe up, and there's too many ways to reply...

...for Joe to use that I don't see what's advantageous in using recycled quips. That just plays into their framing of Joe as some kind of teetering relic from the past.

[radius777]

9. Better for Joe to just destroy him with display of knowledge.

Biden is an expert in foreign affairs and many other topics, and can easily just rough him up and slap him around, especially when it comes to the failed covid response.

Trump is an idiot who tweets and watches Fox news and has a shallow understanding of things.

[Bayard]

10. I still think,

trump will find some way to weasel out of any debates. He knows he will look bad. Or, at least his handlers do.