House Republican leaders are scrambling to shore up support for President Trump's massive domestic policy bill amid pushback to the Senate's changes, as the GOP seeks to approve the final version of the legislation ahead of a July 4 deadline to get the bill to the president's desk.

The House took a critical step toward approving their mammoth tax and spending package early Thursday morning by adopting a rule for the measure after tamping down a revolt.

The bill delivers hundreds of billions for new military funding and allows increased spending on immigration enforcement.