Connecticut House Republicans unveiled a plan Tuesday to raise the state property tax credit from $300 to $1,000 and expand eligibility to 800,000 more taxpayers. The proposal would use $500 million in state surplus funds for the first year and aims to ease the impact of rising property assessments following recent revaluations. GOP leaders say the measure is the largest expansion of the credit in state history and urged the Democrat-controlled legislature to approve it in a November special session.