In 2005, the PDOIS joined the National Alliance for Democracy and Development (NADD), and Sallah was selected as the NADD candidate in the 2006 presidential election, but only won 6% of the vote.
2005年，PDOIS加入了全国民主与发展联盟（英语：National Alliance for Democracy and Development）（NADD），萨拉在2006年总统选举中被选为全国民主与发展联盟候选人，但只赢得了6%的选票。