Texas Demos set sites on the White House BY APRIL CASTRO Associated Press Writer HOUSTON - Texas Democrats rallied in support of presidential candidate John Kerry on Friday, buoyed by a call to action by Henry Cisneros, former U.S. Secretary of Housing and Urban Development. Cisneros criticized President Bush during an address to the Hispanic Caucus of the Texas Democratic Party, saying he ended the "longest economic expansion" in modern history. Cisneros, a former San Antonio mayor, vowed Kerry would usher the country into better economic times and bring more Hispanics into the middle-class. "The greatest tragedy to me is...