On 4 July 2011, Thatcher was to attend a ceremony for the unveiling of a statue to Ronald Reagan, outside the US Embassy in London, but was unable to attend due to her frail health. She last attended a sitting of the House of Lords on 19 July 2010, and on 30 July 2011 it was announced that her office in the Lords had been closed. Earlier that month, Thatcher was named the most competent prime minister of the past 30 years in an Ipsos MORI poll.