http://thinkprogress.org/justice/2016/02/16/3749862/election-2012-referendum-on-supreme-court/
"Most importantly, polling indicates that voters took these questions seriously. An August 2012 survey found that 63 percent of all voters (and a majority of independent voters and presidential “swing” voters) said Supreme Court nominations were “an important consideration” in their vote. The same survey found that 54 percent worried that Romney would nominate justices who would “consistently favor corporations over ordinary Americans.” President Obama has not appointed a single Supreme Court justice yet in this term — but, after seeing his two nominations in the first term and hearing clearly divergent visions from his campaign and Romney’s, nearly 5 million more Americans voted for Obama than voted for his opponent."
