A new movement is aiming to mail at least 1 million postcards to President Donald Trump on Wednesday, March 15—historically dubbed "the Ides of March" and known as the day Julius Caesar was assassinated—to show "the man, the media, and the politicians how vast our numbers are...to make it irrefutable that the president's claim of wide support is a farce."

"He may draw a big crowd with empty promises, but the crowd of those that oppose his agenda is exponentially larger. And we will show up to protest, to vote, and to be heard. Again and again and again," the group, which calls itself the Ides of Trump, explained on its website and Facebook page.

The group outlines five steps to participate:

Write one postcard. Write a dozen! Create your own cards, buy them, share them, it doesn't matter as long as you write #TheIdes or #TheIdesOfTrump on them somewhere.

Take a picture of your cards and post them on social media (tagged with #TheIdesOfTrump or #TheIdes, please). This will help us verify our numbers.

Spread the word! Everyone on Earth can let Washington know their opinion of the President. They can't build a wall high enough to stop the mail.

Then, on March 15th, mail your cards to:

The President (for now)

The White House

1600 Pennsylvania Avenue

NW Washington, DC 20500