Drain the swamp has been a popular phrase in American politics for centuries, both literally and figuratively.
In the metaphorical sense, the expression refers to rooting out corruption.
“Draining the swamp” would originate from the times, when Washington D.C. was built upon swampy lands.
The procedure of draining would be used to combat malaria and establish a firmer foundation for the capital.
It was first used metaphorically during the 19th century by Helen Hunt Jackson, who used “clear the swamp” while addressing the shameful state the Indians were left by the settlers and their descendants.
The phrase had been adopted by several prominent figures in American history as well as Ronald Reagan and Donald Trump.
President Trump tweeted “drain the swamp” over 79 times, prior to his election in 2016.
Supporters of Donald Trump would adopt the phrase and would often cite the President as the inventor of it.