Here are RGV results from 2000 to 2020 by the way:
2000: Gore + 10.10
2004: Kerry + 1.47
2008: Obama + 22.94
2012: Obama + 24.73
2016: Clinton + 27.16
2020: Biden + 12.37
That’s wrong
https://en.m.wikipedia.org/wiki/Lower_Rio_Grande_Valley
Gore won by 19.6 points
Kerry won by 8
Obama won by 36.6 points in 2008
Obama won by 39.7 points in 2012
Hillary won by 38.6 points
Biden won by 16 points
That is an insanely miniature delineation of the RGV region. I was using this definition:
I also went with a very broad definition in another post (i.e. any CD touching the border) and was told likewise. I think though that the border CDs in general is what should be looked at because in all 6 (yes, even El Paso) there were large shifts to Trump.