President Donald Trump announced his endorsement of Mitt Romney as the former Massachusetts governor makes another run for political office in Utah.

“Mitt Romney has announced he is running for the Senate from the wonderful State of Utah,” Trump wrote on Twitter. “He will make a great Senator and worthy successor to Orrin Hatch, and has my full support and endorsement!”

Romney immediately thanked the president on Twitter for his endorsement.

Thank you Mr. President for the support. I hope that over the course of the campaign I also earn the support and endorsement of the people of Utah. — Mitt Romney (@MittRomney) February 20, 2018

This is the second time that Trump has endorsed Romney — first endorsing him for president in 2012.

Despite Trump’s 2012 endorsement, Romney joined a group of #NeverTrump Republicans who spoke out against Trump in 2016 describing the presidential candidate as a phony and a fraud. He also suggested that Trump was a racist who would ensure a Hillary Clinton victory. Romney later said that he would have rejected Donald Trump’s 2012 endorsement if he said similar things in public.

If Trump had said 4 years ago the things he says today about the KKK, Muslims, Mexicans, disabled, I would NOT have accepted his endorsement — Mitt Romney (@MittRomney) March 3, 2016

At the time, Trump responded by saying Romney “choked like a dog” during his presidential run.

“The guy’s a stone cold loser and he choked and when you’re a choker, you can never give a choker a second chance. A choker is a choker,” Trump said in June 2016.

Romney changed his tune after Trump beat Clinton for president, and even considered serving as Trump’s Secretary of State. After Trump rejected him in favor of Rex Tillerson, Romney began exploring the idea of running for Utah Senate.

He remained critical of Trump, voicing his dissent with the president after his response to the Charlottesville protests and criticizing a comment he made about immigration from “shithole countries.”

Romney announced his run on February 16, hinting that he would be a different politician than Trump.

“Utah welcomes legal immigrants from around the world,” he said in his announcement video. “Washington sends immigrants a message of exclusion. And on Utah’s Capitol Hill, people treat one another with respect.”