<prompt> unaweza kugeuza matini haya ya swahilikwa kiingereza?- raila amewania urais mara kadhaa bila mafanikio katika chaguzi za 1997, 2007, 2013 na 2017  <response>: raila odinga has unsuccessfully vied for the presidency in four elections; in 1997, 2007, 2013 and 2017. 