The Pennsylvania was called "the big one" and it was also called a "slam dunk" win. The Republicans were denied by the Supreme Court in a one sentence response.
Now the Texas lawsuit is "the big one". This one also won't be heard by the Supreme Court as Texas doesn't have standing. The Republicans, attempting a last second hailmary, have tried to string together a reason as to why they have standing but it's thinner than the top of Donald Trump's head.
The hard truth is that Donald Trump lost in a landslide. Enough States have certified their results and have chosen enough pro-Biden electors to make him President of the United States.
Trump Supporters, don't worry! You will have the pleasure of paying $14.99 a month to watch Trump on the Trump News Network. He'll be running for 2024 right out of the gate, so there will be plenty of entertainment.
Tl;Dr: Trump lost. Biden won. Enough States have certified their results and choose Pro-Biden electors to make Joe Biden President of the United States.