The outcome is slightly uncertain because Republicans, who hold a 53-47 majority, face united Democratic opposition − and the defection of at least two of their own members.Start the day smarter. Get all the news you need in your inbox each morning.

“President [Donald] Trump was clear when he said to root out waste, fraud, and abuse without cutting Medicaid and I wholeheartedly agree,” Valadao said. “I urge my Senate colleagues to stick to the Medicaid provisions in H.R. 1 — otherwise, I will vote no.”