Ohio Gov. John Kasich has picked up the endorsement of U.S. Sen. Rob Portman, R-Ohio, in his campaign for the Republican presidential nomination.

“I have decided to endorse Gov. John Kasich for president because he is a leader who has a proven record of delivering results. John turned Ohio around at a tough time, and I believe he can do the same for our country,” Portman said in a statement released by the Kasich campaign.

In backing his home state’s governor over former Florida Gov. Jeb Bush, the move represents a break of sorts for Portman from the political family he was once closely affiliated with.

Portman served as U.S. trade representative and as the director of the U.S. Office of Management and Budget under President George. W. Bush.

Kasich received the endorsement of Ohio’s Republican party last week. The state party has not endorsed a primary candidate, outside of incumbent presidents, before.

Kasich has been concentrating his campaign the nation’s first primary in New Hampshire, set for Feb. 9. While his national numbers have remained low, recent polling in the Granite State has put him in third place there, behind real estate tycoon and reality television star Donald Trump and Florida U.S. Sen. Marco Rubio.