The ad, which features the Texas senator read Christmas classics like "Rudolph the Underemployed Reindeer" and "The Grinch Who Lost Her Emails," will air in key Iowa markets Saturday night, campaign spokeswoman Catherine Frazier told the Independent Journal. "In the spirit of the upcoming holiday, we are excited to bring a Cruz family Christmas into the homes of SNL viewers in Iowa," she told the website. "Ted is a long time fan of SNL, so the chance to film his own SNL style commercial was an opportunity we couldn't pass up!†Recent polls show Cruz in dead heat with businessman...