American male non-fiction writers in all BBC programmes
Does Barack Obama have what it takes to get to the White House?
Chris Bowlby profiles self-styled socialist US presidential hopeful Bernie Sanders.
Claire Bolderson profiles the young Indian-American governor of Louisiana, Bobby Jindal.
Billionaire Donald Trump, the leading Republican candidate in the US presidential race.
Chris Bowlby profiles George Mitchell, President Obama's newly-appointed Middle East envoy
Ed Stourton profiles the billionaire philanthropist and investor George Soros.
Mary Ann Sieghart profiles provocative US talk show host, Glenn Beck.
Profile looks at US Treasury Secretary Henry Paulson.
Chris Bowlby looks at Jon Stewart, who has brought satire to the centre of US politics.
Allan Little profiles Republican Presidential Candidate Mitt Romney.
Samira Ahmed profiles Newt Gingrich, leading Republican contender for the US election.
Claire Bolderson profiles US Republican vice-presidential candidate Paul Ryan.
Mark Coles profiles Senator Rand Paul, a likely Republican challenger for the White House.
Stephen Bannon, chief strategist and senior counsellor for president-elect Donald Trump.