The Chaser has made its first appearance on the federal election campaign crashing, in spectacular style, an appearance by Prime Minister Malcolm Turnbull in western Sydney.

Sending up Mr Turnbull's recent allusions to himself as a more trusted leader, comedian Chas Licciardello attempted to enjoin him in a famous trust-building exercise, often known as the trust fall.

Mr Licciardello fell backwards as Mr Turnbull moved towards C1, the Prime Ministerial motor car at the conclusion of a press conference at a local school to announce a program to boost science education.