Cotton is the likely GOP nominee expected to face Sen. Mark Pryor (D-AR) in the general election.
"Senator Pryor says my military service has brought in a sense of entitlement, so I brought in an expert," Cotton said in the ad, as Norton slides in next to Cotton.
"I met Sgt. Norton at basic training," Cotton said.
"It's still drill Sgt. Norton. At ease," Norton said.
"Drill Sgt. Norton taught me how to be a soldier: accountability, humility, and putting the unit before yourself. That training stuck," Cotton said.
The ad got plenty of praise on Monday.
This is awesome RT @Heminator: What a great ad from Tom Cotton. https://t.co/XYkX2aoOjk
— Lachlan Markay (@lachlan) April 21, 2014
RT @Heminator: What a great ad from Tom Cotton. https://t.co/NkYek8YUb2
— Melissa Clouthier (@MelissaTweets) April 21, 2014
Great video #ARSEN ==> RT @LegInsurrection: Tom Cotton not putting Mark Pryor at ease http://t.co/h6r4tVAhwL
— Bill Murphy (@billmurphy) April 21, 2014
Very, very clever TV ad from Tom Cotton -- https://t.co/zxzThKSa51 #arsen
— Matt Mackowiak (@MattMackowiak) April 21, 2014
Mark Pryor said @TomCottonAR has a sense of "entitlement" for serving in the military. Watch this great response ad: https://t.co/XnVsVsYfYI
— Brian Walsh (@brianjameswalsh) April 21, 2014
Watch the ad, released Monday, below: