Eric Cantor - Former House Majority Leader, US Republican Party

Is the US Republican Party serious about winning back the White House in 2016? The frontrunner to win the party's presidential nomination is Donald Trump - a billionaire businessman turned celebrity who despises the Republican establishment. Stephen Sackur speaks to Eric Cantor who has long been a pillar of that establishment. He was the number two Republican in the House of Representatives until he got sensationally dumped in a primary contest. What on earth is going on inside the Republican party?