Trump intensifies fracking assault on Biden in Pennsylvania

President Donald Trump (left) and Democratic presidential candidate Joe Biden during the second and final presidential debate (Patrick Semansky/AP)

In a late gambit to win the battleground state of Pennsylvania, US President Donald Trump and his Republican allies have intensified attacks on Joe Biden over fracking.

Mr Trump hopes to drive a wedge between the former vice-president and the white, working class voters tied to the state’s booming natural gas industry.