President Donald Trump has fulfilled a campaign pledge by signing an executive order to withdraw from the Trans-Pacific Partnership (TPP). The trade deal, a linchpin of ex-President Barack Obama's Asia policy, was signed by 12 nations. "Great thing for the American worker what we just did," said Mr Trump as he dumped the pact with a stroke of a pen. He also cut funding for international groups that provide abortions, and froze hiring of some federal workers. During his presidential campaign, Mr Trump criticised the TPP as a "potential disaster for our country", arguing it harmed US manufacturing. Also on Monday morning, Mr Trump pledged to "massively" cut regulations and taxes on companies, but impose "a very major border tax" if they move factories outside the US. "All you have to do is stay,"…