Major markets are mixed in Tuesday's midday trading as geopolitical worries erased earlier gains. The European Union has agreed on economic sanctions against Russia. Before the news hit, stocks were higher on the earnings and the U.S. Consumer Confidence Index rising to 90.0 in July, the highest level in seven years. Shares of Herbalife (HLF) are getting hit after its earnings fell short of expectations. Pharmaceutical giants, Merck (MRK) and Pfizer (PFE), are adding to gains after both beat Wall Street expectations. Twitter is higher in the day. The microblogging service will report earnings after the close and is expected to report a loss of a penny per share. TheStreet's Susannah Lee reports from Wall Street.