Senate Democrats are tweaking their drug-pricing legislation to guard against future administrations sabotaging Medicare price negotiation: They’re adding a measure to require that Medicare negotiate prices on the maximum number of drugs each year, according to a summary of the updates circulating among lobbyists, and some lobbyists interpret that summary to mean that Democrats are moving up the start of Medicare negotiation to next year so the administration can implement that negotiation authority before the next election in case the...