President Donald Trump's tax-cut package cleared its final hurdle in the U.S. Congress on Thursday, as the Republican-controlled House of Representatives narrowly approved the massive bill and sent it to him to sign into law.

Republicans are proposing to dramatically roll back tax breaks designed to boost clean energy projects fueled by renewable sources such as energy and wind. The tax breaks were a central component of President Joe Biden’s 2022 landmark bill focused on addressing climate change and lowering health care costs.

A rundown of what's in the bill as it heads to be signed, including what it could mean to Social Security and Medicare and the political fallout.