“What do politicians and porn stars have in common?”/“They’re experts at switching positions.”

A riddle about politics is:
 
Q: What do politicians and porn actors have in common?
A: Both are experts at switching positions in front of a camera.
 
”@SexCigarsBooze: What do politicians & pornstars have in common? Theyre experts at switching positions in front of a camera” was posted on Twitter on August 30, 2010.
 
     
Twitter
Noah Roth‏
@noahroth
So true!—> RT @SexCigarsBooze: What do politicians & pornstars have in common? Theyre experts at switching positions in front of a camera.
11:03 AM - 30 Aug 2010
   
Twitter
Feisty Redhead‏
@LSUFan74
What do politicians and porn stars have in common? They are experts at switching positions in front of a camera!
2:20 PM - 3 Dec 2010
 
Twitter
Haywood Jablowme‏
@AintRightJokes
Q) What do politicians & porn stars have in common?
A) They’re both experts at switching positions in front of a camera!
10:24 PM - 9 Dec 2010
   
Twitter
Rajiv R. Menon‏
@whatamenon
What do politicians and porn stars have in common? They are experts at switching positions in front of a camera.
8:57 AM - 14 Dec 2010
   
Google Books
The Mammoth Book of One-Liners
Edited by Geoff Tibballs
London, UK: Constable & Robinson Ltd
2012
Pg. ?:
What do politicians and porn actors have in common?
Both are experts at switching positions in front of a camera.
 
Twitter
Kathy Zhu‏
@PoliticalKathy
What does #Hillary & #pornstars have in common?
They are both experts at switching positions in front of a camera.
10:52 PM - 8 Aug 2016
 
Reddit—Jokes
What do politicians and porn stars have most in common?
submitted October 20, 2017 by zacht180
They’re experts at switching positions in front of camera.
COMMENTS
Lifeabroad86
I thought the punch line was going to be something along the lines of “they both have experience fucking people”