Commemorating the 20th anniversary of the Orphan Drug Act and the National Organization for Rare Disorders.

Each circle is a bill. The ring fills as it moves through Congress:

Under the number: the Yea · Nay count of its final (or latest) recorded vote. On a member's page, the small badge is how that member voted: Y Yea / Aye, N Nay / No, P Present, – Not voting.

Gold and violet are only for Yea and Nay; they never mean a party. A member's party is the letter on their photo.