Opposition Leader Bill Shorten has predicted that the Liberal Party will replace Malcolm Turnbull with a new leader before the next election.

Interviewed on ABC1's 7.30 program, Mr Shorten said while he personally liked Mr Turnbull, he had turned out to be a "massive disappointment" as prime minister.

Bill Shorten interviewed on 7.30 on Thursday night. Credit:ABC

"The problem that he has got is that he can't run the Liberal Party," Mr Shorten said.

"Do I like him personally? Yes.