Gary Johnson admits 'almost nonexistent' charity donating
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"For me, giving to charity, I've always viewed that the things that I do in my life contribute to making lives better. That what I've done."
 
Earlier Friday, Clinton released her 2015 tax returns, which showed she and husband Bill ClintonBill ClintonGOP rep: North Korea wants Iran-type nuclear deal Lawmakers, pick up the ball on health care and reform Medicaid The art of the small deal MORE donated about 10 percent of their income to charity and paid a tax rate of 30.6 percent.
 
Gary Johnson estimated his effective tax rate to be around 20 percent.
 
Johnson also said he does not expect 2012 Republican presidential nominee Mitt Romney to endorse him "for all sorts of reasons."
 
"I'm not expecting it," he said. "So given my expectations, everything's a bonus."
 
 
Johnson has been aiming to get on the debate stage by getting a minimum of 15 points in the national polls by September. He has been polling at around 8 percent of late.