The Trump Organization on Monday unveiled a mobile phone plan and a $499 smartphone that is set to launch in September. The new service, Trump Mobile, will offer a $47.45-per-month plan that includes unlimited talk, text and data, as well as roadside assistance and a “Telehealth and Pharmacy Benefit,” according to its website. The company, owned by President Donald Trump, also announced it will sell a “T1” smartphone, which appears to feature a gold-colored metal case etched with an American flag. The new venture is the latest example of Trump’s business empire capitalizing on its association with the sitting president....