Supreme court debates 'Obamacare' and Republican campaign - live

Live coverage as the arguments over the Affordable Care Act go to the Supreme Court, and the Republican primary campaign continues • Live blogging now: Jim Newell 4.45pm: If you only read one thing about the big Supreme Court hearing today, read this: No circus would be complete without a few animals. So wouldn't you know the big crowd outside the US Supreme Court today included a cat on a leash