The US Congress is set to investigate whether president Donald Trump used ‘instruments of state power to punish the press.’

President Trump is accused of secret meetings with the postmaster general to encourage raising postal rates on Amazon. The owner of Amazon, Jeff Bezos, is also the owner of The Washington Post.

The president may also have attempted to block a merger between AT&T and Time Warner, owners of CNN.

If found guilty, President Trump could face allegations of corruption.