Poll: Most Americans Say Supreme Court Ruling On Mandate ‘Would Not Make Much Difference’ | Recent polling has suggested that 61 percent of Americans oppose the individual mandate. But according to a new NBC News/Wall Street Journal poll, 55 percent of survey respondents said that if the Supreme Court strikes down the mandate, it would “not make much difference either way” to them and their families. While the law as a whole is not popular, most Americans support the key elements of Obamacare. In fact, strong majorities favor most of what is actually in the health care law. For example, 82 percent of Americans favoring banning insurance companies from denying coverage based on pre-existing conditions.