Stephen Colbert couldn't resist the irony.
One of the darkest refrains of the Trump presidency have been the crowds at his rallies chanting "Lock her up" at the mention of Hillary Clinton's name.
The idea that an American president would threaten to imprison a political rival smacks of authoritarian tactics that have no place in a democracy.
These days, the chants seem rather ironic being that Donald Trump is facing an impeachment inquiry in the House of Representatives for trying to extort the president of Ukraine. If Trump is removed from office, he may face legal consequences for his actions which could mean jail time.