“Small businesses are the backbone of our economy.” This is a phrase that President Obama has used often and when small businesses suffer, the nation’s economy suffers. More than 35 million Americans work for a company that has fewer than 100 employees. When these workers are uncertain about their job security, they don’t spend money. When 35 million Americans save instead of spend, the economy suffers. CNN’s Ali Velshi examines each presidential candidate’s approach to supporting small businesses.