Will TX and FL switch positions in the 2nd half of this decade?In part—yes.
Every time the presidency has switched parties, dating back to 1968, there has been at least one pickup state which has not flipped back to the party which lost it. (I wrote about this here:
https://talkelections.org/FORUM/index.php?topic=441838.msg8079566#msg8079566.)
I am conscious of the nation’s Top 10 populous states because 53 to 54 percent of the citizens (as do I) live in one of those states.
Top 10 populous states:01. California
02. Texas
03. Florida
04. New York
05. Pennsylvania
06. Illinois
07. Ohio
08. Georgia
09. North Carolina
10. Michigan
Since 1992, with the average number of carried states by presidential elections winners at 29 (a range of 25 to 32 carried states), the highest number of Top 10 states carried has been 8. This was applicable to 1996 Bill Clinton and 2008 Barack Obama. With re-election in 2012, Obama carried 7. That was true with the first-term election for 1992 Clinton. And this was the case with 2016 Donald Trump.
Estimate on likely states for prevailing Republicans and Democrats:
Republican01. Ohio
02. Florida
03. * Texas
04. * North Carolina
05. * Pennsylvania
06. * Michigan
07. Georgia
08. Illinois
09. New York
10. California
Democratic01. California
02. New York
03. Illinois
04. Georgia
05. * Michigan
06. * Pennsylvania
07. * North Carolina
08. * Texas
09. Florida
10. Ohio
Bellwethers—starting with the two of the Rust Belts and two more from the South—are marked with an asterisk *.
What this means, for the Republicans, is that they should go to work on bringing change to their party to go after replacing Georgia—which, along with Arizona, may have realigned to the Democrats beginning in 2020—by pursuing California and Illinois (which vote alike)
or New York.