LONDON (AP) — Ever since Winston Churchill coined the phrase, politicians have extolled the “special relationship” between the United States and Britain. Under President Donald Trump’s second administration, Britain will settle for a merely functional relationship with its former colony turned most important ally. Prime Minister Keir Starmer’s government is racing to bolster its diplomatic and economic defenses for a turbulent new trans-Atlantic era. University College London historian Kathleen Burk, who is an expert on U.S.-U.K. relations, says the relationship is in uncharted waters. British officials say Starmer hopes to visit Washington in the coming weeks, but he has yet to receive an invitation from Trump.