Supreme Court justices face major constitutional questions about presidential authority as Trump administration appeals reach the high court for final review this term.

The court’s conservative majority has so far been receptive, at least in preliminary rulings, to many of President Donald Trump’s aggressive assertions of authority. Liberal Justice Ketanji Brown Jackson invoked the Calvin and Hobbes comic strip after one such decision allowing the cut of $783 million in research funding.

Police arrested and charged a man with possession of explosives Sunday outside a Washington, DC church where an annual Mass to mark the start of the Supreme Court term was set to take place hours later.