Biden tweeted: “Yes, until 18 or graduation — includes GED. But staying in school increases earning power. -vp #whchat #bestidea”
Biden responded to the question as part of the White House chat, an interactive outreach hosted regularly by the White House that allows various members of the administration to answer questions sent by Twitter users. It was the vice president’s inaugural live chat, according to his Twitter feed. The "-vp" on the end of the tweet indicates it was sent by Biden, not his staff.
Obama included the education proposal in his State of the Union address Tuesday. The speech was the subject of this week’s chat.
The full transcript of the chat is available here.