Barack Obama’s presidential foundation is barely two years old, but he is taking it down the same controversial — and by some accounts illegal — post-presidency path of his predecessor Bill Clinton, according to documents reviewed by The Daily Caller News Foundation’s Investigative Group.Federal law requires tax-exempt entities like the Barack Obama Foundation and the Bill, Hillary and Chelsea Clinton Foundation to stick closely to their IRS-approved missions. For former chief executives, that mission has been building and operating libraries to house their official papers for posterity.In a relatively unnoticed series of steps during the first six-years of its existence, the Clintons converted their foundation...