Ahmed got a personal invitation from President Barack Obama for “Astronomy Night.” The president uses the event to encourage students to pursue careers in science, technology, engineering and mathematics. Last month, Ahmed brought the clock to his school to show a teacher, but another teacher thought it could be a bomb. The school contacted police, who ultimately chose not to charge Ahmed with having a hoax bomb, though he was suspended from school. Obama subsequently Tweeted an invitation to Ahmed and said the U.S. should inspire more kids like him to enjoy science. Ahmed said he was grateful for the president’s support and said he’s OK with the nickname that so many have given him over the past few weeks – “clock kid.” He said the lesson of his experience is: “Don’t judge a person by the way they look. Always judge them by their heart.” Ahmed’s family is looking at several options for a new school. He hopes to eventually go to the Massachusetts Institute of Technology and become an engineer. The White House invitation was not without controversy. Republican presidential candidate Ted Cruz hit out at President Obama for not giving law enforcement officials the same respect he’s giving Ahmed. White House spokesman Josh Earnest said Monday the president has made clear in many settings the respect he has for law enforcement officers.