From Politico …
On the federal employee pension plan: In order to pay for the megabill, Senate Republicans are considering substantially hiking “federal employees’ retirement contributions to 15.6 percent of their salary — compared with the 9.4 percent required in the initial version of the bill — while carving out an exemption for members of Congress and their staff,” POLITICO’s Lawrence Ukenye reports.
I think ‘substantially’ manages to understate the hike here.