Trump was undercounted by 3% in 2016 and 2020, so it’s entirely reasonable the cheaper polls are simply adding 3% to his numbers to adjust.  It’ll make the Harris camp fight harder, which is good as Trump will likely try to steal a close result.  In an electoral vote tie, the GOP controlled House will vote Trump, .. so in a sense she’s always the underdog as the Democrats never had 270 in the bag. 

If Trump just plain wins, the polls won’t really matter that much anyways.  The resulting purges of many brown people physically from the country or in work camps down South will reshape who votes where in 2028.  Then some in the MAGA-GOP may start looking at women’s suffrage (taking this back to 1908)..