Billionaire investor Warren Buffett, alongside Democratic presidential nominee Hillary Clinton at a Nebraska rally, challenged Republican Donald Trump to release his tax returns. Buffett also hammered the GOP nominee's business record. (Reuters)
Trump ratcheted up his rhetoric against Hillary Clinton once again, telling a rowdy crowd in battleground-state Pennsylvania that she was "the devil" — a temporary departure from the "Crooked Hillary" moniker. (NBC News)
Trump's campaign is appealing to Capitol Hill leaders for support, as the real estate mogul's attacks on the Muslim parents of a decorated American soldier killed in Iraq drew sharp rebukes from fellow party members as well as Democrats. (Reuters)
JPMorgan Chase (JPM) chief Jamie Dimon talked up the bank's competitive position in a wide-ranging interview with CNBC. He also said if the next U.S. president implements the appropriate reform programs, GDP could rise to 4 percent.
Gawker chief Nick Denton has filed for personal bankruptcy protection, according to court documents that named his largest creditor as Hulk Hogan, the former professional wrestler who won a $140 million judgment against the website over a sex tape. (Reuters)
Theranos CEO Elizabeth Holmes has outlined the steps she plans to take to increase transparency regarding the efficacy of the troubled company's testing methods. Theranos was once a Silicon Valley darling with a $9 billion valuation. (CNBC)
McDonald's (MCD) plans to use sugar instead of corn syrup in its hamburger buns, and eliminate artificial preservatives from its Chicken McNuggets and a handful of items on its breakfast menu. (Reuters)
In a highly unusual travel warning, health officials are advising pregnant women to avoid a part of Miami where mosquitoes were apparently transmitting Zika directly to humans. (AP)