Senate Republicans revolt against Trump over border

Rebel members of President Donald Trump's party have helped pass a vote to reject his declaration of an emergency on the US-Mexico border.

Twelve Republican senators broke party ranks to side with Democrats, approving a proposal to revoke the proclamation by 59-41.

The Democratic-controlled House of Representatives last month backed the measure.

Following Thursday's vote, Mr Trump tweeted: "VETO!"

Congress needs a two-thirds majority of both chambers to override a presidential veto, which is viewed as unlikely in this case.

Nevertheless, the vote will be seen as an embarrassing loss for the president on his signature domestic issue.