John Oliver hilariously critiques Donald Trump's corn comments on 'Last Week Tonight'

Comedian John Oliver made fun of Donald Trump's smarts on his show "Last Week Tonight." He talked about corn farming and how politicians support it. Trump once called corn "non-liquid gold" during a speech in New Hampshire. Oliver agreed with Trump that the U.S. is big in producing, using, and selling corn. But Oliver pointed out that big companies harm the environment while growing corn. This can lead to harmful chemicals in water and a disease called blue baby syndrome. Corn is also used for making fuel, like ethanol in gasoline, to reduce foreign oil use. However, Oliver said ethanol has more downsides than benefits. He mentioned a study showing corn ethanol has a bigger carbon footprint than regular gasoline. Oliver thinks it's time to change how America farms its top crop, corn. He joked about educating people on corn by showing someone getting hit by it in a corn maze. Oliver also poked fun at Trump for calling corn "non-liquid gold." Trump claimed the U.S. is the biggest in dealing with "non-liquid not-gold" in the world. Oliver ended the show by saying there won't be a new episode on May 26 but will return on June 2.