"In short, culture matters and this president will protect her culture and preserve the values of hard work, personal responsibility, family and faith," Romney said. Above all, we must preserve the American spirit of one nation, under god, as president, all support the expression of religious faith in the public square."

Taking a swipe at a comment made by President Obama during the 2008 presidential campaign, Romney also spoke of meeting voters who "are proud to cling to their religion and to the constitution , the american dream and the principles our nation was founded on."

Earlier in the day Romney's running mate, Paul RyanPaul Davis RyanMeghan McCain calls Russian attacks against her father the 'highest compliment' to her family Atheist group argues in court for prayer rights on House floor Small-dollar donations explode in the Trump era MORE, addressed the convention in person. Romney was campaigning Friday in Ohio.

While the event was billed as a celebration of conservative social values, Romney tied social issues to the economic messaging that has dominated his campaign.

"We need a president who understands we will not have a stronger economy unless we have strong communities and strong families," Romney said.

The GOP hopeful said that while the economy might be "the best the Obama Administration can do," it was not "the best America can do."