New voter registrations surged among Black women and young people in Pennsylvania when Kamala Harris became the Democratic nominee for president, according to newly released data.

In the week that Joe Biden announced he would not run for re-election, new registrations increased by 262 per cent among Black women under 30 compared to the same week in 2020.

Registrations among Black voters increased by 110 per cent, and among voters under 30 years old by 59 per cent, also compared to the same week in 2020.

All of those demographic groups lean heavily towards voting for Democrats.