A long list of celebrities also spoke out and took part.
Today hundreds of thousands of people are participating in the Women's March against Donald Trump's presidency.
This marches are taking place all over the world, including in
Ireland.
While people of all walks of life march in solidarity, one person who affected by Trump's win in more way than one is Hillary Clinton.
She took to Twitter to thank people all over the world for taking part.
''Thanks for standing, speaking & marching for our values at Women's March. Important as ever. I truly believe we're always Stronger Together.'' It read.
https://twitter.com/HillaryClinton/status/822822900239581184
She also shared a stunning piece of art with the caption 'Hope not Fear'.
https://twitter.com/HillaryClinton/status/822846188936396803
No word yet on whether Hillary is taking part in any of the marches but numerous celebrities from Ariana Grande to Sir Ian McKellan are marching today.
''We the people, all the people.'' Ariana Grande said on Instagram.
https://www.instagram.com/p/BPiKzjWFwsc/?taken-by=arianagrande
https://www.instagram.com/p/BPiCmiRDjVN/
https://www.instagram.com/p/BPiGyrXAUhi/
https://twitter.com/Zendaya/status/822822443630858242?ref_src=twsrc%5Etfw
https://www.instagram.com/p/BPh5v6Eg8Zy/
https://twitter.com/Parkrecord/status/822836786854436864/photo/1?ref_src=twsrc%5Etfw
https://www.instagram.com/p/BPiHxt3DlQo/
https://twitter.com/tasharowmanoff/status/822848469664530432?ref_src=twsrc%5Etfw
https://www.instagram.com/p/BPiM5slF8P9/?tagged=womensmarch
https://twitter.com/shinylifeforme/status/822820139007610884
https://www.instagram.com/p/BPiSQjXFuOj/?taken-by=pink