NEW: Democrats will keep both of their New York Senate seats Rubio wins in Florida, Boozman wins in Arkansas; O'Donnell loses in Delaware Blumenthal, Manchin win key Senate seats for Democrats Exit polls show the economy is the main issue on voters' minds  Watch CNN live on TV, online and on your iPh... GOP will take the House, CNN projects; battle on for Senate Legislative Elections in EEUU-Source: Congoo- Retransmitted: La Voz de TODOS Nicaragua linked al MUNDO-stayed connected-