Safety pins have become a symbol of solidarity with refugees and other migrants since the historic Brexit vote to leave the European Union in June.

Now, people in the United States are showing that they are allies with groups — including LGBT, minorities and women — who say they feel threatened by Donald Trump's election.

**PLEASE PARTICIPATE IN THIS TOMORROW!!** I know I haven't been active in the last couple of days; I'm so very sorry. The election has taken me completely be surprise and I'll admit I'm having a very rough time with it. Please keep America in your thoughts. Let's always remember to spread love. ❤️ - - - - - - - - - - - - #booknerd #bibliophile #bookworm #bookaholic #bookstagram #safetypin #hillaryclinton #imwithher #strongertogether #hillyes #bookstagrammer #yalit #shelfie #booksonbooks #booklover

A photo posted by Heidi 📚 (@b00kn00k) on

Twitter user @cheeahs launched the idea, according to New York magazine, with the notion "that anyone against the sort of nationalistic, racist violence we’ve been seeing could identify themselves as a ‘safe ally.’”

Trump rode to victory with a "Make America Great Again" message that included a vow to build a wall along the border with Mexico — and make Mexicans pay for it — and deport millions of undocumented immigrants.

Trump rode to victory with a "Make America Great Again" message that included a vow to build a wall along the border with Mexico — and make Mexicans pay for it — and deport millions of undocumented immigrants.