Democratic nominee Hillary Clinton once again called on her Republican rival Donald Trump to release his tax returns.
Clinton and her running mate Tim Kaine released their tax returns last month. Speaking to press on her plane, Hillary Clinton said she wouldn't stop raising the issue until Mr Trump followed suit.
ALTERNATIVE
Democratic nominee Hillary Clinton says that her daughter Chelsea Clinton's involvement in the Clinton Foundation charity will be decided after the US election.
Clinton has come under increasing pressure to clarify what will happen to the Clinton Foundation if she becomes president.
Donald Trump has accused Mrs. Clinton of giving favourable treatment foundation donors when she was Secretary of State.
Speaking to press on her plane, Hillary Clinton says the foundation has always been transparent.