More than 70 cents of every dollar Libertarian Gary Johnson — a man who could play spoiler in battleground states in November — has spent so far in his 2016 presidential bid has gone to the consulting firm of his campaign manager, Ron Nielsen, according to a Center for Public Integrity review of federal campaign finance filings. This has irked some Libertarians ahead of their national convention, which starts Friday in Orlando, Florida, where party activists will select their presidential and vice presidential nominees. “It’s extremely troubling,” said George Phillies, chairman of the Libertarian Party of Massachusetts.