US election 2020: What are caucuses and primaries?

The first round in the contest to pick a Democratic candidate to face President Donald Trump, has been chaotic due to apparent technology issues. Despite the absence of results, in the Iowa caucus, several candidates have claimed victory. But what are caucuses and primaries? And how do they work? We'll explain the process and analyse who could face President Trump in this year's election.

Also, the new coronavirus outbreak that has spread from China does not yet constitute a "pandemic", according to the World Health Organization (WHO). They say a pandemic is the worldwide spread of a new disease. At least 427 people have died with more than 20,000 confirmed cases around the world, most of them in China. We bring you the latest on the outbreak.

And Kenya's former president Daniel arap Moi has died at the age of 95. He was president of Kenya for 24 years. We hear from Kenyans about his time in power.

(Photo: Supporters of Democratic presidential hopeful Elizabeth Warren look at their mobile phones before she speaks at her Iowa Caucus rally in Des Moines, Iowa, U.S., February 3, 2020. Credit: Reuters/Brian Snyder)