Bernie Sanders launches second run for US president

Sanders, 77, joins an already crowded field of candidates vying for the Democratic nomination to run against Trump in 2020. A self-described democratic socialist, Sanders made an unsuccessful run for the presidency in 2016 whose progressive themes inspired a younger generation of voters. Sanders, an independent who caucuses with Democrats, highlighted policies he will advocate on the campaign trail: healthcare for all, raising the minimum wage to a "living wage," and combatting climate change.
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