Opposition leader Henrique Capriles marched through Venezuela's capital Sunday accompanied by hundreds of thousands of supporters as he formally launched his candidacy to run against President Hugo Chavez.

Surrounded by supporters waving red, yellow and blue Venezuelans flags, Capriles marched and jogged from a park in eastern Caracas toward the headquarters of the National Elections Council, 6 miles (10 kilometers) away, where he formally registered.

"I want to be everybody's president, not the president of a single group," Capriles told the crowd, repeating his theme that his campaign is trying to bridge the country's deep political divisions, in contrast to Chavez's often-inflammatory attacks on rivals.

"I am not anybody's enemy," Capriles said. "I'm the enemy of problems."

Capriles has vowed to create jobs, fight crime and root out corruption, though most polls say he is trailing Chavez ahead of the Oct. 7 election.