In early 1949, Sihanouk traveled to Paris with his parents to negotiate with the French government for more autonomy for Cambodia. The modus vivendi was replaced by a new Franco-Khmer treaty, which recognised Cambodia as "independent" within the French Union. In practice, the treaty granted only limited self-rule to Cambodia. While Cambodia was given free rein in managing its foreign ministry and, to a lesser extent, its defence, most of the other ministries remained under French control. Meanwhile, dissenting legislators from the national assembly attacked the government led by prime minister Penn Nouth over its failure to resolve deepening financial and corruption problems plaguing the country. The dissenting legislators, led by Yem Sambaur, who had defected from the Democrat party in November 1948, deposed Penn Nouth. Yem Sambaur replaced him, but his appointment did not sit well with the Democrats, who in turn pressured Sihanouk to dissolve the national assembly and hold elections.