Candidates clash over border policy

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Candidates clash over border policy The sharpest exchange came when Julian Castro challenged Beto O'Rourke over criminalising border crossers.

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'Economy doing great for a thin slice of US' Massachusetts Senator Elizabeth Warren made an impassioned plea about income inequality in the opening of the debate.

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How good is 2020 Democrats' Spanish? Democrats hoping to beat Donald Trump must win backing from Latino voters. Is their Spanish bueno?

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How to pitch yourself to Iowa voters It takes a lot to stand out in a crowded Democratic field. So how did they do in Des Moines?

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Will it be third time lucky for Joe Biden? The former US vice-president announces that he's running for the White House - again.

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'Voters will care about my ideas, not that I'm gay' The mayor of a city in Indiana tells the BBC why he's running for president.

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Who is US 2020 hopeful Beto O’Rourke? The Texan defeated in his Senate ambitions says he's running for president in the 2020 election.

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