Boston Mayor Michelle Wu joins volunteers in the “write-in” campaign for Joe Biden in Manchester, New Hampshire, ahead of the primary. Tuesday’s ballot will not include the US president, whose Democratic Party approved Joe Biden’s proposal to make South Carolina the party's first "primary" of 2024 instead of the Granite State. Volunteers are campaigning to inform residents who want to vote for the US president in the Democratic primary on how to write down his name on the ballot. "Some are a little bit confused. But for the most part they just want to know 'Ok, he's not on the ballot, how do I fix that?'", explains Zena Martin, a volunteer for the campaign. "Joe Biden is the only candidate on both sides of the race that has beat Donald Trump before and we have to beat Donald Trump again. This is a choice between democracy and dictatorship," adds another volunteer. IMAGES AND SOUNDBITES