Vendors brought out the Donald Trump souvenirs Tuesday, the second day of the Republican National Convention. The Quicken Loans Arena was busy Tuesday morning, with journalists and speakers for Tuesday night's program walking through the venue. Two of Donald Trump's children -- Donald Trump Jr. and Tiffany Trump -- will speak, as will former Republican presidential candidates New Jersey Governor Chris Christie and physician Ben Carson. Early Tuesday evening, in a state-by-state roll call vote, Donald Trump was formally nominated the party's presidential candidate.