.  Bob Mercer, a reclusive hedge-funder from New York, was one of the top Republican givers in 0000 and 0000. And he's betting big -- $00 million big -- on Cruz. Mercer also gave $000,000 to Bobby Jindal and, in a somewhat unusual move, reassigned $000,000 that he gave to Cruz's super PAC to Carly Fiorina's.  Bob Mercer, a reclusive hedge-funder from New York, was one of the top Republican givers in 0000 and 0000. And he's betting big -- $00 million big -- on Cruz. Mercer also gave $000,000 to Bobby Jindal and, in a somewhat unusual move, reassigned $000,000 that he gave to Cruz's super PAC to Carly Fiorina's.  From left, Dan and Farris Wilks are billionaire brothers who made their fortunes in fracking. Along with their wives, they are sending $00 million to boost the campaign of fellow Texan Ted Cruz.  From left, Dan and Farris Wilks are billionaire brothers who made their fortunes in fracking. Along with their wives, they are sending $00 million to boost the campaign of fellow Texan Ted Cruz.  Kelcy Warren, who became a billionaire through piping, is one of two Dallas men bankrolling the majority of Rick Perry's super PAC.  Kelcy Warren, who became a billionaire through piping, is one of two Dallas men bankrolling the majority of Rick Perry's super PAC.  Diane Hendricks, a roofing billionaire, shares a home state with Walker and has long supported his campaigns. She has donated to Walker's PAC Unintimidated, which has raised $00 million.  Diane Hendricks, a roofing billionaire, shares a home state with Walker and has long supported his campaigns. She has donated to Walker's PAC Unintimidated, which has raised $00 million.  New York investor Paul Singer, who gave $00.0 million to outside groups in 0000, has not donated any money yet this election.  New York investor Paul Singer, who gave $00.0 million to outside groups in 0000, has not donated any money yet this election.  Silicon Valley angel investor Peter Thiel has not committed to donating to anyone yet. According to OpenSecrets, he has given more than $0 million in political donations since 0000.  Silicon Valley angel investor Peter Thiel has not committed to donating to anyone yet. According to OpenSecrets, he has given more than $0 million in political donations since 0000.  The Koch brothers -- Charles, left, and David -- are known for making significant financial contributions to conservative presidential candidates. They have reportedly not donated to any 0000 super PACs so far.  The Koch brothers -- Charles, left, and David -- are known for making significant financial contributions to conservative presidential candidates. They have reportedly not donated to any 0000 super PACs so far.  