President Donald Trump signed an executive action reinstating the so-called Mexico City Policy, delivering an early and expected victory to opponents of abortion rights who helped fuel his return to power.

Mexico and Canada are putting aside their differences and forming a more united front as they try to head off US President Donald Trump’s threat to impose steep tariffs on them as soon as next week. Since winning the election in November Trump has repeatedly threatened his country’s two largest trading partners with tariffs of 25 per cent on all exports to the US in retaliation for what he says are rising levels of illegal immigration and the trafficking of the opioid fentanyl into the country.

They are allied countries with which the U.S. has a trade deal (a deal negotiated by Trump, no less), but presidential emergency powers are nearly limitless.