I can sort of answer that myself. Not from my own brain, but seniors I know. They have memory problems. Short term memory (psychology) has started to go. But I will define a term: shortish memory. Depending on the individual, it is somewher in the 1-3 year range. For politics, they remember this unimportant stuff that came to their phone about Biden. And they vagueley remember Covid. Those memories will fluctuate wildly, covid. But they do not remember 2020 well when they come to the 2024 election. They remember most vividly the last two years of Biden. So they have completely forgotten the conman Trump. And it's masses of foreigners coming over the border, a good 50% of them rapists and Venezuelan gang members and tattoos! The MAGA people have the tattoos. The ones over 65 and voting (largely Republicans, many Democrats choose to live their lives and interact with family and forget poltics except for that one November week) only captured fear in the assessment of our future. And that someone else (illegals!) was taking our Social Security under Biden. Better to vote Trump, then.