By Andrea Shalal and Trevor Hunnicutt REHOBOTH BEACH, Del. (Reuters) -U.S. President Joe Biden compared Tesla unfavorably to Ford on Friday, while sarcastically wishing Chief Executive Elon Musk “lots of luck” on his “trip to the moon” after the billionaire expressed reservations about the economy. Musk wrote in an email to executives that he has a “super bad feeling” about the U.S. economy and needed to cut about 10% of jobs at the electric carmaker, Reuters reported earlier on Friday. Asked by Reuters about Musk’s comments, Biden suggested maybe the issue was with Tesla. “While Elon Musk is …