Right. That money to influence federal employment will flow to them with or without unions. The PACs are completely voluntary donations. At union meetings folks are asked to give to them. Most of the money in unions goes toward operating expenses.
Watch Missouri on Wed. A handful of Republicans are refusing to vote to override Gov. Nixon's veto of the Right to Work law. After Nixon vetoed the law in May, unions gave him $500K. But that is to be expected of Democrat pols and their union buds. One wonders what "incentives" unions are offering all these Republicans?
Depending on what area of the country, government employee unions can be much more forceful in terms of recruitment methods and "donations."