Sen. Ted Cruz, R-Texas, officially no longer holds dual citizenship with Canada.

The United States' neighbors to the north sent the Texas senator a certificate a few days ago showing he has renounced his citizenship in Canada — nearly 10 months after he said he would do so.

Cruz, a potential 2016 presidential candidate, had learned from The Dallas Morning News that he also became a citizen of Canada "the moment he was born" in Calgary to an American mother. He gave the news first to the DMN, as promised.

"The senator is pleased to have this process finalized," Cruz spokeswoman Catherine Frazier told USA TODAY.

The question of Cruz's citizenship was potentially a problem as he visited early presidential states such as Iowa, New Hampshire and South Carolina — prompting headlines about a possible 2016 bid.

The U.S. Constitution states only a "natural born" citizen can be president, and that has been interpreted over the years to include Americans born overseas to an American parent — such as George Romney, born in Mexico to Mormon missionaries.