Finance Minister François-Philippe Champagne responds to skepticism that his first budget can deliver its claim of $1 trillion in total investment over five years and defends the value of the budget's $78 billion deficit. Champagne tells MPs from other parties 'to think twice' before deciding not to support the document as it remains unclear where the Liberals will find enough support to pass it. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video,