NSW Liberal MP 'can't vote for Morrison'

Scott Morrison has defended the flood response after criticism from NSW Liberal Catherine Cusack. (AAP)

Another Liberal MP has called out the prime minister's character, saying she cannot vote for a "a ruthless self-serving bully" and no longer recognises the party she joined.

NSW state Liberal MP Catherine Cusack attacked Scott Morrison's handling of the recent floods, accusing him of politicising the tragedy.