In the desperately important election this year, every closely contested race is a battle worth fighting. There are a few state governor contests of that ilk, something like 10 different Senate races this year that could be considered competitive*, but not too many more House races than that, post-gerrymandering war, and probably a few hundred seats in state legislatures across the country. There is the overall contest for control of the House of Representatives and for the Senate, and those two outcomes are massively important , but each is the result of a number of different elections, so one can hardly focus on those, in themselves--it is necessary to go into the next level down and look at what will drive those victories, or defeats.
The race that I think is most critical, though, is the Senate contest in Texas, between Democrat James Talarico and Republican Ken Paxton. The latter candidate was just nominated by his party's voters in a run-off election that ran off 24-year incumbent John Cornyn (who will remain as a dangerous zombie Senator whose emotional status is uncertain, like Bill Cassidy in Louisiana, similarly jettisoned from the Titanic Trumpist Tragedy. (ETTTTTS). Paxton is the most Trumpist viable candidate ever, rating super highly on both the loyalty and coirruption scales. Texas is only rated as something like a 35-40% chance for Democrats to win in the prediction markets.
It's only one Senate seat, and so the chances that it will be decisive are maybe one in 10 (but a little higher since the Platner controversy has made gaining the Maine seat more uncertain), but the implications are much greater. Talarico is not just an unusual talent, squeaky-clean, and uniquely suited to be the Democratic candidate in Texas, due to his convincing Christian-but-not-Christian-nationalist vibe, but a potential national leader--in a Democratic administration, like Buttigieg, even if he isn't able to get elected this year.
Beyond that, though, the Texas race has possibly decisive and enduring effect on the big picture: control of the Federal government at the top. The thing is, we are used to looking at a certain set of midsize "swing states" as a fixed, or slowly changing, decisive group for purposes of Presidential elections. States like New Hampshire, say, or Iowa, may be somewhat susceptible to flipping from one election to another, but they are too small in Electoral College votes to be at all likely to changing the outcome.+ We know the suspects; it starts with Pennsylvania, then it goes to Michigan, Wisconsin, and more recently Georgia and Arizona (the last two replacing Ohio, which went red, and Minnesota, now seemingly safely blue).
There has not been a really big state that has looked even possibly marginal in its outcome since California and New York fell off the cliff for Republicans in statewide elections. The only other states in that category is Florida, which seemingly remains inexplicably bad, and Texas. If Texas were to become a "purple" state where the outcome of a Presidential election there is not certain, it would have a huge effect on the numbers--of Electoral College votes, and of spending on the contest, too.
I'm way ahead of myself, but a Mark Kelly-James Talarico ticket, Kelly promising to serve one term, could carry the swing states and Texas and lead to the kind of 350+ EV rout that is needed (in 2028, or 2032 if we must defer our dreams) in order to put the GOP in its place, which is as a regional party no longer a threat to destroy our Federal government and our Constitution. That would make reforms of the kind needed.
* In order of likelihood of Democrats winning the contested seats (+4 net result needed): New Hampshire (to retain vacating Democratic seat), North Carolina (flip, Republican vacating), Michigan (again, to retain vacating Democratic seat), Alaska (flip, strong Democratic candidate), Iowa (Republican vacating), Ohio (flip of appointed Republican Senator), Maine (flip, with Platner being only moderately damaged in Maine voters' eyes), Texas (flip, vacating Republican due to the primary result), then ones like Florida (weak appointed Senator), South Carolina (good candidate flipping on flippant Lindsay Graham), and finally longshots in South Dakota and Louisiana. Ranking above Florida are Nebraska and Montana, where the strong candidate who might flip the seat is running as an Independent.. I'm assuming Georgia is safe for Jon Ossoff against a disorganized Republican opposition. He's also a Talarico-type rising star.
From this list, you could see that I rate Texas as the fifth-most-likely to flip, and thus not absolutely necessary, if Democrats hold their seats and come through in Maine, Iowa, and Ohio. I'm counting on North Carolina and Alaska to get things started.
+ Unless there is no majority in the Electoral College and it goes to the House, where the Constitution gives each state's delegation one vote. That remains very improbable as long as there are only two major party candidates winning all the states (last time that didn't happen was 1968).



