New Mexico Gov. Susana Martinez throws support behind Marco Rubio

New Mexico Gov. Susana Martinez is throwing her support behind Marco Rubio.

Martinez announced Thursday she was endorsing Rubio. The New Mexico Republican is expected to campaign with the Florida Republican in Kansas and Florida later this week.

“Marco Rubio is a compelling leader who can unite the country around conservative principles that will improve the lives of all Americans,” she said in a statement.

Martinez is the first Hispanic female governor in the United States. She’s also the first female governor in New Mexico’s history. She currently serves as the chairwoman of the Republican Governors Association.

According to POLITICO, which first reported the endorsement this morning, Martinez wouldn’t commit to back Republican frontrunner Donald Trump if he becomes the Republican nominee.

“The stakes for our great country are too high — and the differences between the candidates too great — for me to remain neutral in this race,” said Martinez in a statement. “I wholeheartedly trust Marco to keep us safe and ensure a better tomorrow, and I look forward to campaigning with him later this week.”