By Luc Olinga The investor is one of the most popular personalities, an important asset in the current climate of division. He is popular. He is a household name. He is as comfortable on television as on social networks and sports venues. Mark Cuban, 64, is the billionaire next door. The one who can be friends with the haves and the have-nots. His energy is contagious. He is respected by both Democrats and Republicans. To this almost ideal pedigree, we must add that he was born in Pittsburgh, PA, a key state for the Democrats, and has been living in Dallas, TX, a Republican bastion, since 1982…