It seems increasingly likely that senators will delay the Trump-era Medicare drug rebate rule to help pay for bipartisan infrastructure legislation, and there’s a chance Democrats could still use a full repeal of the rule as an offset in the separate, partisan $3.5 trillion budget reconciliation bill later this year. Even if the rule is revoked, drug rebates could still be a target for reforms in drug pricing legislation, though they might just be transparency measures. Sen. Joe Manchin (D-WV),...