https://arstechnica.com/tech-policy/2020/12/house-overrides-trump-veto-defying-demand-to-repeal-section-230/

The House of Representatives has voted to override Donald Trump's veto of the National Defense Authorization Act (NDAA) by a vote of 322 to 87 votes—easily exceeding the required two-thirds vote. The measure now goes to the Senate, where it must also pass by a two-to-one margin to overcome Trump's opposition.

Every year, Congress passes the NDAA to fund the military—this year's bill provides $740 billion for the Pentagon. Thanks to broad public support for the military, the NDAA is widely seen as a "must pass" measure. This makes it a tempting vehicle for attaching unrelated proposals that might not otherwise win Congressional approval.