this is what Rubio said exactly-— “The attacker in San Bernardino was an American citizen, born and raised in this country. He was a health inspector; had a newborn child and left all that behind to kill 14 people.” I am sorry Rube but there were two attackers— maybe you should try reading a news story before you comment on it...
The attacker was a Pakistani citizen, given permanent residency, and fully vetted by the DHS - she and her husband left behind their child to go kill the very people who gave them baby shower gifts.