Can President Obama find enough in spending cuts and tax increases to keep his campaign promise to overhaul the healthcare system, without adding to already huge deficits? House and Senate leaders do not like Obama's ideas but cannot agree on alternatives. Other proposals that could reduce healthcare spending would take too long to show savings for purposes of Congress's budget scorekeeping, and many would require big investments initially, such as for research into cost-effective treatments. Also, special interests like insurance companies and employers are on alert to oppose anything that could hurt them.