For the silent down voters, when has Trump shown signs of senility?

There's plenty to dislike about him, and he does seem to have health issues, but I just haven't seen signs of serious cognitive decline.

> For the silent down voters, when has Trump shown signs of senility?

For quite a while. Even compared to the already generally incoherent speaking style of his first term, his speech has been unfocussed, his grasp of facts worse, etc., during his second term. Even before that, the cognitive test he bragged about passing his first term isn't sonething that is ever indicated without symptoms of cognitive impairment, his speaking style, grasp of facts, etc., in even his first term shows significant decline from his earlier public life, heck even his extreme forward leaning stance, while it can have other source, is a symptom of certain kinds of dementia.

Aside from fairly extreme media bias issues stemming from business and political interests of media owners that became undeniable with the public active intervention of a number of media owners late in the 2024 campaign, he gets a pass for this for a number of reasons, including the fact that critics generally have a lot of bigger fish to fry, some critics see pointing to cognitive dysfunction as mitigating arguments they want to make about conscious moral evil, incoherence and looseness with facts being a noted feature of his speaking style making people less likely to note changes that are changes in degree rather than kind for him, etc.