He also noted how people involved with CGI were getting flack for being involved because of his foundation's diminishing reputation

Clinton said his involvement with CGI and the Clinton Foundation would 'raise too many questions,' which is why he is walking away

While Clinton dismissed any pay-to-play criticism as 'bull' he said CGI couldn't function without corporate donors and an international reach

and explained why this year's would be the last

Former President Bill Clinton spoke in detail today about why he's decided to end the Clinton Global Initiative after this year, explaining the conflicts-of-interest it would present would be just too great if Hillary Clinton were elected president.

'Yeah, the stuff that they've said so far is just bull,' Clinton told CNBC's Becky Quick. 'But if she was actually the president, it would raise too many questions. I think it's fair.'

Clinton was referring to the criticism lobbed at his family foundation, which the Clinton Global Initiative is a part of, by Republicans who have suggested that the Clintons were allowing donors to pay to play while Hillary Clinton was secretary of state.

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Former President Bill Clinton sat down with CNBC today from the Clinton Global Initiative saying it would be 'impossible' to keep it going if Hillary Clinton won the White House

Former President Bill Clinton (left) told CNBC's Becky Quick (right) that the 'economics' of the Clinton Global Initiative wouldn't work without corporate donations

Right off the bat, Bill Clinton explained to Quick why it would be 'impossible' to carry on if the election goes his wife's way, saying that CGI needed its corporate donations and its international reach.

'The economics of it won't work unless there are corporate sponsorships and unless we can have people from all over the world here.,' Clinton said.

'And I learned that already in this election that some people were just subject to a presumption of guilt just because they were participating,' the former president added.

'And to be fair a lot of times the political press they have no previous exposure to the way we work even though we've done it for years and made everything public. We disclose everything. Who's giving, what they're doing and all that,' Clinton said.

Quick pointed out that it would be hard to continue that because you wouldn't want to be asking people for favors as the spouse of the president of the United States.

'That's correct,' Clinton acknowledged.

He noted how all former presidents have foundations, which could be funded by individual donors and those donors could be made public four times a year, but that's not what the Clinton Foundation and the Clinton Global Initiative had grown into.

'If the very model itself requires international as well as domestic support, then I think it's just – you don't want a private operation doing that is Hillary is the president,' Clinton said.

Presidents, he said, could work on public-private partnerships – and they do all the time.

'But nothing on the scale of CGI, and I hope it's a trend toward the future,' Clinton noted.

'I think it works better when we recognize that there are always going to be things that the government can't provide and the private sector can't produce and that a group like this working together can do something faster, cheaper, better,' Clinton continued.

'But it can't be generated from somebody like me who is outside the government but whose wife may be in it,' he said.

Clinton recommitted to stepping away from the Clinton Foundation, of which CGI is a part of, though explained why daughter Chelsea Clinton need to stay on.

'Somebody has to superintend the handing off of all of this,' he said, explaining that some of the work the foundation does will be spun off into other non-Clinton run foundations.

'And that takes some time to do,' he said.