Brief drop due to Electrions chaos, then back up a month after

I was checking last elections on 2012, 2016 and 2020. Seems that there is a brief drop before elections each time (5% to 10%) in the overall S&P500 (SPX). This year, seems that drop is not meaningful yet. Regarthless, I think going defensive this week to be heavy in cash. Then buy back into the market if price hits 5400 previous to Dec. It it do, I'll buy back 25% of SPX and wait if the trend still going in the direction to hit ~5000. If it do, might be back fully invested into the market to hope for a bounce back up signal.

We can protect ourselves of a 10% loss if I get this one right OR we can miss 5% on profits if the trend keeps going up in Nov and Dec.

Messy chart but I put my resistances and trends in here.

Any thoughts?