Ryan was sitting on the dais at the inauguration and the president attacked a slogan Ryan invented.
President Obama took direct aim in his inaugural address at the Randian rhetoric that animates the politics of Rep. Paul Ryan (R-Wis.) and his conservative followers in the House and around the country, arguing that the United States is "not a nation of takers."
For Ryan, the country is divided between "takers" and "makers." He generally puts the number of the former at around a third, with the remainder in the producing category. The dichotomy has been a regular part of his rhetorical repertoire for years, and was elevated during the presidential campaign as Ryan sought the vice presidency.
The only thing that would've been better is if he had turned to Ryan and said, "Any more lies about my record, Scooter?"