They are trying to strike a careful balance on issues where Republicans have held a political advantage in recent years.

President Donald Trump on Sunday said efforts to deport people who are illegally in the United States must be expanded, including from cities such as Los Angeles, Chicago and New York, which have seen protests since immigration raids were ramped up.

About 2,000 protests and rallies are planned, but organizers have drawn special attention to Philadelphia – where the Second Continental Congress signed the Declaration of Independence – and Los Angeles,