Scottsdale, Arizona (CNN) - Members of the Republican National Committee gathering in Arizona were invited to meet with Mitt Romney in private Friday and have their pictures taken with the presumptive GOP nominee, but there was a price of admission: loyalty. RNC members and state GOP chairmen were welcomed into the private reception only after signing a form pledging to support Romney as a delegate to the national convention in Tampa. – Follow the Ticker on Twitter: @PoliticalTicker All 168 members of the committee have a vote at the convention as "superdelegates" – and one of Romney's supporters on the...