Fixed regression in NOMINATE decorate code that broke plot on Congress page.
Fixed regression in NOMINATE decorate code that broke plot on Congress page.


Former-commit-id: c1e1599f14ba3f59f485dddce910d5b4383c9ec9
JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView