WASHINGTON - Miami's Jesús Soto supports Venezuelan President Hugo Chávez's vision of ''participatory democracy.'' Valerie Pusch of Chicago backs Chávez because of his policies on behalf of the poor. And they say so loudly, as heads of their local Bolivarian Circles -- among the dozen or so U.S. copies of the groups Chávez has set up throughout his country to mobilize Venezuelans on behalf of his socialist ``revolution.'' Even as Chávez attacks President Bush as his sworn nemesis, his government is running a strong campaign to curry favor with U.S. citizens through leftist grass-roots groups, paid lobbyists and public relations...