Why is Kamala Harris still raising money?

Email received just now:

Suppose that I do send in the requested $60. Kamala Harris has thus far raised $1.4 billion from her billionaire supporters. Will the $60 additional actually change what they can do over the next four days? How? Or is there some other reason for trying to convert me into a financial supporter at the peasant level?

The above email came two hours after a request for $47:

We need everyone, honestly. This is an all-hands-on-deck moment for an expensive final push.

$47 to help get voters to the polls — voters we need to win.

$47 to make sure Trump never returns to the White House.

$47 one last time before the election. For Vice President Harris. For our democracy.

(They say “honestly”. Does that mean that previous statements from Harris and/or Walz were dishonest? Also, “our democracy” is at stake. Is that a message for the truly passionate anti-Trumpers to spend $47 on ammunition?)

At 5:23 pm today:

“our very democracy is at stake”! Where is a Latter-day Thomas Matthew Crooks to save our very democracy?

There were quite a few more today. My favorite has a subject line of “Your neighbors in Cambridge are counting on you!” (the direct mail hucksters have figured out that we moved to Florida; why couldn’t the political machines?)

At 12:14 pm, the price of virtue had fallen to just $1: “That is the donation we’re asking you to make directly to Kamala Harris’s campaign for president today. Yes, we’re lowering our ask to just $1 in the hopes you’ll chip in for the first time.”

So… with just a few days to go before what used to be considered the “big day” (before mail-in ballots and early voting) why does a $1 donation help? Why does a $60 donation help? Is the idea to build habitual donors so that money can be spent on the 2026 election?

(I can’t show any comparable examples from the Trump-Vance campaign because either they aren’t emailing out similar appeals or their computers agree with Harris-Walz’s that I am a Massachusetts progressive Democrat.)