Sen. John Fetterman, D-Penn., lobbied for securing the U.S. southern border, telling CNN on Friday that 300,000 illegal immigrants attempting to enter the country are blocking legal migrants from their "American dream." Fetterman spoke to CNN’s "The Lead" anchor Jake Tapper about the current migrant crisis, claiming the wave is making our immigration system "difficult." Though he noted he’s a huge proponent of legal migration, he demanded a "secure border" and questioned why his progressive critics have a problem with that.