Bill Clinton defends work of foundation

Former president Bill Clinton defended the work of his charitable foundation on Monday, telling supporters that it had "improved millions of lives around the world" but needs to change if his wife, Hillary Clinton, wins the White House.

The former president outlined the Clinton Foundation's accomplishments and planned shift in scope in an email to about 500,000 supporters.

Hours earlier, Republican presidential nominee Donald Trump called the foundation "the most corrupt enterprise in political history", adding, "It must be shut down immediately". He bore down again during a speech later in Akron, Ohio, telling a crowd that if elected, he would have a special prosecutor appointed to investigate the foundation.

Bill Clinton announced last week that the foundation will no longer accept contributions from foreign governments and corporations if his wife, the Democratic presidential nominee, is elected.

"Since Hillary began her presidential campaign in 2015, Chelsea and I have made it clear that the work the Clinton Foundation started should continue if Hillary is elected, but that changes would be necessary," Bill Clinton said in the email. "While it would be presumptive to assume a victory in November, now that Hillary is her party's nominee, it would be irresponsible not to plan for it."

The changes aim to address criticism from Republicans and some Democrats that the foundation has created a significant conflict of interest as Hillary Clinton seeks the presidency. While Trump has donated to the foundation previously, he has charged Hillary Clinton with creating a "pay-for-play" scheme at the State Department through the work of the foundation.

The ex-president said in the event of another Clinton presidency, the foundation's work, funding and his role in it would raise questions that would need to be resolved "in a way that keeps the good work going while eliminating legitimate concerns about potential conflicts of interest".

If Hillary Clinton is elected, the former president said the foundation would accept contributions only from US citizens, permanent residents and US-based independent foundations, whose names would continue to be disclosed on a quarterly basis.

He said the official name would be changed from the Bill, Hillary and Chelsea Clinton Foundation to the Clinton Foundation. And he said he would step down from the board and no longer raise money for it.

Bill Clinton said that much of the foundation's international activities would be transitioned to other organizations to continue that type of work.