Mezue ahịrịokwu na-esonụ: Na 12 June 2008, e mere ntuli aka maka nkwenye nke nkwekọrịta nke Lisbon. E meriri nke a, site na oke nke 46.6% ruo 53.4%. N'abalị iri na ise n'ọnwa Ọktoba afọ 2009,
emere referendum nke abụọ maka nnabata ya, nke a kwadoro site na 67.1% ruo 32.9%.