The layoffs have nothing to do with Obama or Trump, but rather GREED by a CEO Hunter Harrison and the Pershing Capital investment group that is taking over, reducing head count, possibly merging with Canadian Pacific Rail Road so they can squeeze some money out of it.
They see some efficiencies that can be brought in to run it leaner and reap the profits for themselves. They don't care if people loose their jobs, their houses, their pensions and everything else that CSX has meant to people for the last 20 or 30 years.