The owner of the Washington, D.C.-area gym chain Solidcore was fuming when she found out First Daughter Ivanka Trump took her exercise class, writing Thursday on Facebook that Ivanka's father, President Donald Trump, "is threatening the rights of my beloved clients and coaches." Anne Mahlum, founder of Solidcore, took to Facebook to express her outrage after learning that Ivanka Trump chose her gym for a workout class and used an alias to hide her identity, the Washington Examiner reported. "What you do when you find out Ivanka Trump just took [Solidcore], but used an alias to sign up for class?...
