OSCEOLA, Iowa (AP) — Ted Cruz worked to consolidate support from Iowa conservatives Tuesday with the help of former Texas Gov. Rick Perry, while rival Donald Trump claimed Cruz was "nervous" with less than a week until voting kicks off in Iowa. Bernie Sanders, locked in a tight race with Clinton in Iowa, acknowledged in a town hall forum Monday night that his plan for free public college tuition and government-run health care would raise taxes — an unusual admission from a presidential candidate. [...] he defended the proposal as a way to eliminate insurance premiums and ensure universal coverage.