While it is really cool that Texas is taking this course with the help of so many other states, SCOTUS will likely punt on this case, as well. They have no stomach for choosing who wins the election.
In addition, the conservative wing of the court is likely wanting to appease the Democrats in the hope they won't pack the court after January, 2021. The Democrats have made it abundantly clear that is their intention, regardless of what the justices themselves desire.