When she's the president, she won't do radio interviews but we'll all get free ice cream

Who said this?

"Oh when I'm the president, when I'm the president, I won't talk on the radio when I'm the president. Oh when I'm the president, ha ha, when I'm the president, I'll show ya how I'll run the House when I'm the president. What this country is in need of is a lot of hidy-hoe, boopey-doop, and chocolate ice cream. Now we will get things for nothing, movies, cabarets and jazz. You have heard all my suggestions, and with me you all agree, now we'll have a perfect country, these improvements you will see."

Andrew has the answer, as does the video below.