MEXICO CITY (Reuters) - Mexican leftist Andres Manuel Lopez Obrador has pulled further ahead of his presidential rivals in the run-up to a July 1 election, a voter survey by polling firm Mitofsky showed late on Wednesday.
Former Mexico City mayor Lopez Obrador received 31.9 percent support in the poll conducted from April 13 to 15, up from 29.5 percent in a previous Mitofsky survey last month.
