Former U.N. Ambassador Nikki Haley is already looking ahead to next week’s Michigan primary, with her campaign unveiling its first TV ad in a state where many Republican officials have already lined up behind former President Donald Trump. Polls have shown Haley trailing Trump in her home state of South Carolina by a significant margin ahead of Saturday’s primary. She …

First, there were trackers on Taylor Swift and other celebrities’ private jet usage. Now, the IRS is scrutinizing businesses’ use of private aircraft, with the tax agency announcing that it will ramp up audits of corporate jets. IRS leadership said Wednesday that the agency will start conducting dozens of audits on businesses’ private jets and how they are used personally …

Amazon.com is being added to the Dow Jones Industrial Average, joining Apple, Walt Disney, Walmart and other companies that make up the 30-stock average. The e-commerce giant will replace drugstore operator Walgreens Boots Alliance in the Dow before the open of trading on Monday, S&P Dow Jones Indices said Tuesday. The shift was prompted by Walmart’s decision to do a …