At least half of the nation's states are facing budget shortfalls, some of them severe, and policymakers in most of the states affected are proposing and passing often-painful measures to trim costs and close the gaps. Spending on schools is being slashed, after-school programs are being curtailed and teachers are being notified of potential layoffs. Health-care assistance is being cut for the elderly, the disabled and the poor. Some government offices, such as motor vehicle department locations, will start closing on weekends, and some state workers are receiving pink slips.