Billionaire Elon Musk backs Donald Trump with his billions, time and influence

Tesla CEO Elon Musk has played an unusually prominent role in this year's United States presidential election. After staying out of politics for years, the world's richest man has hit the campaign trail in support of Donald Trump. That has raised questions about what's driving the tech billionaire to back the former president. CNA's Ira Spitzer finds out as he reports from San Francisco.