The revised package now heads back to the House, where Republican leaders hope to approve it and send it to Trump before a self-imposed July 4 deadline. But it faces hurdles.

After a nail-biter vote in the Senate, the House is taking up President Donald Trump's giant tax and immigration bill. It's expected to face some issues, especially among fiscal hawks as the Senate version is projected to add roughly $1 trillion more to the deficit than what the House passed back in May.