― Mitt Romney has a six-point lead over President Barack Obama, according to a Gallup poll of likely voters released Wednesday. Directs 51-45 among likely voters and 48-46 among registered voters, according to an average of seven days. ∙ Gallup is large margin between the last polls, seven other national surveys published in the last two days show margins ranging from 3-4 Obama Romney. ∙ The Gallup poll showed Romney 50-46 on Tuesday and 49-47 on Monday. ∙ The numbers do not [...].