An &quot;I Voted&quot; sticker sits on a table as residents make selections on their ballots while voting in the San Francisco Columbarium polling location during the presidential primary election in San Francisco, California, U.S., on Tuesday, June 7, 2016. Hillary Clinton secured the delegates required to claim the Democratic presidential nomination Monday, putting further pressure on Bernie Sanders to exit the race. Photographer: David Paul Morris/Bloomberg Photo: David Paul Morris, Bloomberg