Both Uses

rant
in
In the Unlikely Event
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Donny Kellen was always ranting about the Commies and how they were trying to take over the world.†
p. 62.1 *

ranting = complaining or verbally attacking in a loud, excited way
When the Dianetics were kicked out of town for starting a medical school without permission, he'd ranted about that, too, but Miri didn't think the Dianetics had anything to do with the Commies, though she couldn't be sure.†
p. 62.2

ranted = complained or verbally attacked in a loud, excited way

Definitions:

(1) (rant)
to complain or verbally attack in an excited rather than thoughtful way
(2) (meaning too rare to warrant focus)