Washington: In an unexpected endorsement, former US president Barack Obama has shared on his Twitter handle a letter by former members of his administration that rebuked racism in American politics and called out President Donald Trump for his racist comments made against four Congresswomen of colour. Also Read - Twitter Suspends Account of Iranian Leader Ayatollah Ali Khamenei For Tweet Against Trump

The letter, co-signed by 149 African Americans, appeared as an op-ed in The Washington Post on Friday. Also Read - President Biden Gets Rid of Trump's Diet Coke Button From White House Desk, Twitter is Thoroughly Amused

Sharing it on Twitter late on Saturday, Obama wrote: “I’ve always been proud of what this team accomplished during my administration. But more than what we did, I’m proud of how they’re continuing to fight for an America that’s better.” Also Read - China Sanctions Trump Officials, Including Mike Pompeo, Hours After Biden Takes Over as President

In the op-ed titled, “We are African Americans, we are patriots, and we refuse to sit idly by”, the former Obama administration officials vowed to stand up against the “racism, sexism, homophobia and xenophobia… wielded by the President (Trump)”.

“There is truly nothing more un-American than calling on fellow citizens to leave our country — by citing their immigrant roots, or ancestry, or their unwillingness to sit in quiet obedience while democracy is being undermined,” they wrote.

The letter was written as a reaction to Trump’s tweet that the four minority lawmakers should “go back” to the places they came from.

Trump reportedly post the tweet after a crowd of his supporters at a campaign rally chanted “Send her back!” at the mention of US Representative Ilhan Abdullahi Omar, a Somali refugee who became a US citizen in 2000.