Type Circuit Split into the search bar on Bloomberg Law. A dropdown menu should appear, the first choice being "Circuit Splits - recent circuit splits as reported in U.S. Law Week" (There is a blue navigation button to the right. ) Click on that first suggestion to see circuit splits.
You can also go U.S. Law Week and run a search for "circuit splits reported"
Also, from https://www.bloomberglaw.com/ click on News & Analysis in the top grey bar (near the right corner). Click on Bloomberg Law News and a menu will open up listing news pages on individual topics.