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: a808a91b07e20cd753bb20d70e7c94958efa6a89
JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView