Story highlights Real estate mogul Donald Trump is seen as "not too" or "not at all" religious by 60% of voters

Former Secretary of State Hillary Clinton is seen as not religious by 43%

Washington (CNN) Donald Trump is seen as the least religious candidate of the leaders in the presidential races in both parties, according to a Pew Research Center poll released Wednesday.

The real estate mogul is seen as "not too" or "not at all" religious by 60% of voters and "very" or "somewhat" religious by 30%. Former Secretary of State Hillary Clinton, a Democrat, is second, with 43% seeing her as not religious.

Republican Ben Carson, a former neurosurgeon, is viewed by 68% of those surveyed as religious, the most of any candidate, with Texas Sen. Ted Cruz next at 65%.

Some 52% of white evangelicals say they think Trump would be a good president. In a separate question, however, two-thirds of Republicans said it's important to have a president that shares their religious beliefs.

Both Trump and Clinton are leading their parties in national polls.

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