President Trump praised Sen. Orrin Hatch, R-Utah, for his “incredible career,” after the senator announced earlier on Tuesday he would be retiring at the end of 2018 and not compete in the midterm elections.

“Congratulations to Senator Orrin Hatch on an absolutely incredible career,” Trump tweeted Tuesday. “He has been a tremendous supporter, and I will never forget the (beyond kind) statements he has made about me as President. He is my friend and he will be greatly missed in the U.S. Senate!”

Up until now, it was unclear whether Hatch would run in the 2018 election, delaying other Republican candidates, including 2012 presidential nominee Mitt Romney, from possibly entering the race.

Romney thanked Hatch for his service on Tuesday, but did not provide any indication whether a Senate run was a possibility.

“I join the people of Utah in thanking my friend, Senator Orrin Hatch for his more than forty years of service to our great state and nation,” Romney wrote on Facebook.

“As Chairman of the Senate Finance and Judiciary Committees and as the longest-serving Republican Senator in U.S. history, Senator Hatch has represented the interests of Utah with distinction and honor,” he added. “Ann and I wish Senator Orrin Hatch and his loving wife Elaine all the best in their future endeavors.”

Hatch, a loyal supporter of Trump, is the chairman of the Senate Finance Committee and was first elected in 1976.