In the 2010 United States Senate election in Hawaii which took place on November 2, 2010, incumbent Democratic Senator and President pro tempore Daniel Inouye won re-election to his ninth term, with 277,228 votes (74.81%) over Republican Campbell Cavasso with 79,939 votes (21.57%).
The 2010 United States Senate election in Hawaii took place on November 2, 2010 concurrently with elections to the United States Senate in other states as well as elections to the United States House of Representatives and various state and local elections. Incumbent Democratic U.S. Senator and President pro tempore Daniel Inouye won re-election to his ninth term. United States Senate election in Hawaii, 2010 Democratic Daniel Inouye (incumbent) 277,228 74.81% Republican Campbell Cavasso 79,939 21.57% 
