The Coca-Cola Company KO could have some of the most prominent people in the U.S. watching along when the beverage giant reports second-quarter financial results Tuesday before market open.Here are the earnings estimates, what experts are saying ahead of the report, and the key items to watch.Earnings Estimates: Analysts expect Coca-Cola to report second-quarter revenue of $12.54 billion. That’s up from$12.36 billion in last year's second quarter, according to data from Benzinga Pro.The company had a rare ...