House Democratic Leader Nancy Pelosi said on Friday that her party could not support a measure to renew expiring tax breaks and warned that it must be separated from a $1.15 trillion government spending bill needed to avoid a government shutdown next week. Pelosi told a news conference that Republicans had loaded up the tax “extender” package with too many breaks for oil companies and other special interests and would not meet Democratic demands to index a tax credit for working families to inflation.