Trump's threat to invoke Insurrection Act escalates showdown with Democratic cities

Donald Trump's threat to invoke a federal anti-insurrection law to deploy troops to more US cities has intensified his legal battle with Democratic leaders over the limits of presidential authority, as hundreds of National Guard soldiers from Texas prepared to start patrolling in Chicago as early as Tuesday. The Republican president on Tuesday again left open the possibility that he might utilise the centuries-old Insurrection Act in an effort to sidestep any court rulings blocking his orders to send Guard troops into cities over the objections of local and state officials. A federal judge has temporarily barred Guard troops from heading to Portland, Oregon, though a separate judge has allowed for now a deployment to proceed in Chicago, where federal...