Republican debate: What Jeb could learn from George

Jeb Bush's campaign to become the third member of his family to be US president is not going well.

The former Florida governor began the battle for the Republican nomination as the frontrunner, but now he's languishing in the lower single digits in most polls.

At Tuesday's fourth GOP debate in Wisconsin, the 62-year-old needs to convince conservative activists - and donors - he has what it takes to win the White House.

So, what could the younger Bush learn from the campaigning style of his older brother, and two-time president, George W Bush?

Produced by Olivia Lace-Evans