MADRID — Prime Minister Pablo Sanchez of Spain published his doctoral thesis online Friday to deflect doubts over its existence and rebut allegations of plagiarism raised by media and the political opposition.
A day earlier Sanchez, a Socialist, wrote on Facebook that he considered the plagiarism allegations a ‘‘personal attack’’ by opposition parties in the absence of a ‘‘solid political project.’’
He also threatened to take legal action against ABC newspaper and other media that published stories arguing that passages of his ‘‘Spain’s Economic Diplomacy, 2010-2012’’ dissertation had been copied from other researchers’ works.
Academic misdeeds uncovered by the media have led to political turmoil and a string of high-profile resignations in recent months. They include the conservative former president of the Madrid region and a health minister in Sanchez’s Cabinet, who stepped down amid allegations that they had obtained master’s degrees at the same private public policy institute in Madrid without apparently showing up for classes or by copying passages of their papers.