Admiral Nimitz of the Navy wanted to capture the small groups of Japanese-held islands in the Pacific, then seize Taiwan,and finally attack Japan itself.
VOA: special.2011.06.23
And he did not dismiss Chester Nimitz after Admiral Yamamoto was shot down without a trial and Japanese merchant vessels were sunk in blatant disregard of Geneva conventions.
In a wood-paneled office aboard the Nimitz, Vice Admiral Cullom points out that when the Navy decided to build nuclear-powered ships like this one, the technology was too expensive to be commercially viable.