Romney is a Mormon and Ryan is Catholic. While Catholics have been nominees before, National Journal says at no other time has a ticket not featured a Protestant.
Romney's team clearly thinks they are going to win on religion in the campaign, even though evangelicals won't have one of their own on the ticket. In an ad released Thursday by the Romney campaign, Romney is portrayed as a defender of religious liberty, and charges that President Obama "used his health care plan to declare war on religion, forcing religious institutions to go against their faith."
A recent Pew Research Center poll shows that voters are largely comfortable with Romney's Mormon faith. The poll, published July 26, shows that 80 percent of voters who are aware of Romney's religious background are either comfortable with it, or don't care.
A deeper look into those results reveal that white evangelical voters are less likely to be comfortable with Romney’s Mormon faith than any polled subgroup, other than atheists and Democrats. The 23 percent of white evangelicals who say they are uncomfortable with Romney’s Mormonism still support him over Obama by an overwhelming majority, but they characterize their support as not strong.

