Speaking at the U.S. Chamber of Commerce, U.S. Sen. Rand Paul, R-Ky., suggested that President Barack Obama is keeping a Nixonian-styled "enemies list" for backing a labor group's complaint against Boeing.Last month, the National Labor Relations Board alleged the Seattle-based aerospace and defense giant violated federal labor law when Boeing decided to relocate a manufacturing facility in the South Carolina in 2009.Joined by a group of GOP lawmakers who also denounced the White House, Paul said the Obama administration is keeping tabs on its critics and using its federal power to punish contractors who have given money to opponents.Check it out (h/t B&P):