Of course there has been successful deportations in the past otherwise there would be a huge population problem if there had not been. Maybe there are some closer to the borders that take place ,I can not imagine there not being any success at all from the immigration police down there.
The deportation of illegal immigrants doesn't work because they can just come back in again as easily as they did the first time. We should implement a reasonable path to citizenship that is humane and is in the interest of both Americans and Latin American immigrants. We should be more welcoming to people who want to come to our country.