The Senate bill’s Medicaid cuts are too aggressive for politically vulnerable Republicans.Its clean energy funding cuts are too tame for conservative House Republicans, who are threatening to sink the legislation.

Republicans in the House and Senate are struggling to agree on key parts of Trump’s tax bill, including tax cuts, immigration enforcement and climate change policies.

While the two bills are similar on the major tax provisions, how they work out their differences in the coming weeks will determine how quickly they can get a final product over the finish line. President Donald Trump is pushing to have the legislation on his desk by July 4th.