 31% of builders said they cut home prices in July. That is higher than the 29% that did in June. They're still trying everything to get buyers in the door. CNBC's Diana Olick. On today's watch list, we get earnings from Johnson & Johnson and United Airlines. It's the second and final day of the Amazon Prime Day sale. And the mirage closes in Las Vegas after 30 years. CNBC's Jessica Ettinger, now 24 after.