During his inauguration speech, President Donald Trump declared that he would be signing a slew of Executive Orders Monday that could have serious impacts on San Antonio and South Texas, including revoking birthright citizenship, sending troops to the border, and renaming the Gulf of Mexico. Gulf of America During Trump's speech at the Capitol Rotunda, he said that among his first duties as President will be signing an Executive Order officially renaming the Gulf of Mexico – the only body of water bordering Texas – to the Gulf of America. The renaming of the Gulf is expected to take effect Monday afternoon.