Last night the House unanimously passed the Hezbollah International Financing Prevention Act to target the Lebanese paramilitary group’s global funding and recruitment streams. But Congress already voted on it twice — almost a year ago. While President Donald Trump has expressed a determination to crack down on Hezbollah and other Iranian proxies, the House must still wrangle with the Senate over minor differences before the bill makes its way to Trump’s desk.

“Today’s bill will build on existing sanctions against Hezbollah by targeting its global fundraising and recruiting, as well as those who provide it weapons,” House Foreign Affairs Committee Chairman Ed Royce, R-Calif., said in a statement after it passed. “This legislation is the product of months of bicameral, bipartisan work, and I hope the Senate will take it up quickly.”

What’s taking so long? Few things happen fast in Congress, and this is no exception. The House and Senate unanimously passed slightly different versions of the same legislation last year within weeks of each other. While the House voted on the version of Sen. Marco Rubio, R-Fla., last night, the lower chamber amended it, punting it back to their Senate colleagues for yet another floor vote.

What does it actually do? Both the House and Senate bills block the assets of anyone the president determines “provides significant financial, material or technological support” for Hezbollah and its affiliates. But the House bill directly singles out Iran and contains a nonbinding clause asking the president to sanction Lebanese cabinet members and parliamentarians belonging to Hezbollah or its affiliates.