The following November, addressing the Chamber of Deputies, Mordini denounced government prevarication in an effective speech which contributed to the fall of the Rattazzi government. But there was absolutely no indication of any change to his now unwavering faith in Italy's constitutional monarchy, and there was no departure from his continuing belief in the possibility of a closer co-operation between Garibaldi and the king. It was precisely this which led him, during 1863 and 1864, to weave a network of connections with a number of Hungarian and Polish expatriates, and to support the insurrection that broke out in Poland in January 1863. In Mordini's judgement, the conditions were ripe for a successful intervention by another Garibaldi-led volunteer army. He saw a possibility the a successful insurrection in Poland could lead to further territorial losses by the hated Austrian empire involving Hungary and - of particular significance to Italian nationalists - the Veneto region which, despite its Mediterranean history and heritage, remained under Austrian control till 1866. These machinations and hopes turned out to be all in vain. They became intertwined with Mordini's attempts to persuade Garibaldi to accept the leadership of a political party with a "constitutional democratic stamp": he pursued his ideas with Garibaldi in April 1864, during a triumphal visit the men undertook to London (where Italian unification was viewed as a matter for much celebration by the political class, and Garibaldi enjoyed hero status). Garibaldi rejected Mordini's proposals and Mordini, having already abandoned his adherence to the "extremist" democratic left-wing of politics, became more firmly committed to the agenda of the mainstream political centre. In November 1864 he cast his vote in the Chamber of Deputies in favour of moving the capital from Turin to Florence: the move was implemented promptly, during 1865.