It hasn’t been a good spell for Marco Rubio, who managed to botch the name of the United States in a letter.

The senator from Florida, who bowed out of the Republican presidential race after his home state primary, sent a letter asking the Alaska GOP not to release his pledged delegates before the national convention.

His missive to GOP Chairman Peter Goldberg contained an awkward faux pas – he referred to the 172 delegates he won while running for the highest office in the “Untied States.”

“The decision to suspend my campaign for President of the Untied States is not intended to release any National Convention Delegates bound to me as a result of the 2016 delegate selection process that took place in your State,” he wrote.

He sent a carbon copy of the undated letter to national party Chairman Reince Priebus, Talking Points Memo reported.

MSNBC reported that Rubio is asking state parties in 21 states and territories to not release the delegates.

The move is meant to block front-runner Donald Trump from securing the nomination in the event of a contested convention.