'Friends should not let friends vote for Trump': Clinton

US Democratic presidential nominee Hillary Clinton slams rival Donald Trump saying he has 'no plan' as she campaigns in Pennsylvania with Vice-President Joe Biden.

SCRANTON, PENNSYLVANIA (Reuters) - US Democratic presidential nominee Hillary Clinton blasted rival Republican Donald Trump with a series of zingers as she campaigned with Vice President Joe Biden in Scranton, Pennsylvania.

She attacked his economic plan saying, "It turned out to be worse than I ever imagined."

Mrs Clinton continued with her zingers telling people in the crowd, "Friends should not let friends vote for Trump."

The Democratic nominee also criticised Mr Trump for not releasing his tax returns.

Mrs Clinton campaigned with Mr Biden in the Keystone state just before Mr Trump was due to give a speech outlining his plan to battle Islamic State.

On that, Mrs Clinton said, "Sometimes he says he won't tell anyone what he'll do because he wants to keep his plan secret, and then it turns out the secret is he has no plan."