US elections 2020: Ballot drop boxes installed across states

They will be emptied twice a day when early voting starts, with 24-hour surveillance.

The US Postal Service has warned that millions of mail-in votes may not arrive in time to be counted for November 3, the Election Day.

States are scrambling to install ballot drop boxes to encourage early voting.

That is despite President Donald Trump’s claims without evidence that mail-in voting will encourage fraud.

Al Jazeera’s Alan Fisher reports from Maryland, US.