A Promised Land
... that Barack Obama's 2020 book A Promised Land took longer to write than any other presidential memoir in the past hundred years?
... that <a href="./Barack_Obama" id="mwBVk" rel="mw:WikiLink" title="Barack Obama">Barack Obama</a>'s 2020 book <i id="mwBVo"><b id="mwBVs"><a href="./A_Promised_Land" id="mwBVw" rel="mw:WikiLink" title="A Promised Land">A Promised Land</a></b></i> took longer to write than any other presidential memoir in the past hundred years?