US President Donald Trump secured a major political victory when Congress narrowly passed his flagship tax and spending bill, cementing his radical second-term agenda and boosting funds for his anti-immigration drive.

A few hours after the Senate passed the bill on Wednesday, the hashtag #MuskWantsToBuildAnAmericaParty went viral on Weibo, a Chinese social media platform and has received more than 37 million views.

The homeland security secretary would have a new $10 billion fund for grants for states that help with federal immigration enforcement and deportation actions.