Barack Obama has called on US citizens, colleges and law firms to resist Donald Trump’s political agenda – and warned Americans to prepare to “possibly sacrifice” in support of democratic values. “It has been easy during most of our lifetimes to say you are a progressive or say you are for social justice or say you’re for free speech and not have to pay a price for it,” Obama said during a speech at Hamilton College in Clinton, New York, on Thursday. The two-term former Democratic president painted a picture of the Trump White House looking to upend the international