<h1>US President receives unprecedented second state visit invitation to UK for September 17-19 at Windsor Castle</h1> A US President will make an unprecedented second state visit to the UK between September 17-19, to be hosted by the monarch and spouse at Windsor Castle. No US president has previously received a second state visit invitation. The Prime Minister hand-delivered the invitation in February, with the visit seen as efforts to maintain close relations and mitigate potential policy impacts. The three-day visit will include traditional royal ceremonies, though protests are expected. Some lawmakers question extending this honor given current foreign policy positions regarding allied nations' sovereignty.