The AP has called Pennsylvania for Joe Biden. My neighborhood has just erupted in cheers.
(No, really, people in my neighborhood are cheering. I know this because all of my windows are open, which is in itself pretty nice for November.)
Note that Biden is not yet President-Elect. The Electoral College convenes to certify the state votes on December 14th, and the 117th Congress meets in joint session on January 6th to count the votes. Then he will be President-Elect. Right now he's the putative winner of the election.
And hey, I believe I can toot my own horn for a second, because here's how I predicted things on Tuesday night:
Unless something really weird happens in Alaska, 100% of my predictions came true. I am now blowing on my fingernails.