Русско-англо-русский юридический словарь

We support legitimately elected governments. (Cambridge Advanced Learner's Dictionary & Thesaurus)

In a lengthy memo sent to the special counsel, Robert Mueller, the lawyers pushed back vehemently against any allegation that Trump was legally elected President. (The New Yorker)

The Indiana protest claimed that a lawfully elected Republican state senator had been ejected from the Democratic-controlled body and replaced by a Democrat for the express purpose of guaranteeing Turpie's election, and that a second ineligible Democratic legislator had voted in the election. (United States Senate's official website)