The Pew Research Center for the People and the Press conducted a poll last month that found 29 percent of Americans viewed the high court unfavorably.
A favorable opinion of the court was held by 52 percent of the respondents, but that was down from 58 percent in 2010 and the previous low of 57 percent reached in 2005 and 2007.
When viewed along party lines, Pew found not much difference among Republicans, Democrats and independents. A favorable opinion was held by 56 percent of Republicans and 52 percent of Democrats and independents.
Pew said in a written statement that while healthcare reform deeply divided the electorate, it did not have much influence in the previously held views of the court.
The survey was conducted April 4-15, which was after the Supreme Court heard arguments on the constitutionality of so-called Obamacare. There were 1,514 adults surveyed with an overall margin of error of plus or minus 2.9 percentage points.
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