WASHINGTON (AP) — More than a dozen U.S. senators from both parties are calling on the Obama administration to broaden a Medicaid program for the nation’s frailest seniors, calling it a proven alternative to pricier nursing home care as states seek to limit long-term medical costs.

In a letter released Thursday, the senators urged the Centers for Medicare and Medicaid Services to follow through on plans to loosen restrictions on the Program of All Inclusive Care for the Elderly. PACE is open to Medicaid-eligible seniors and people with disabilities who need nursing home care.