Venezuelans will vote for president Sunday. Experts think it would be the closest election President Hugo Chavez has ever faced. He’s won three elections and been in office for 14 years. Some voter opinion studies show Mr. Chavez ahead of his opponent Henrique Capriles. Other studies show the two candidates with almost equal support among voters. The president’s support is strong among the country’s poor. Mr. Capriles has energized the opposition. The 40-year-old lawyer has criticized Mr. Chavez for not preventing power shortages, for a lack of food and for a high murder rate. Mr. Chavez says he is now well after been treated for cancer in Cuba. If he wins a fourth term he will leave office in 2019. That would mark his 20th year as Venezuela’s president.