Its president was Hugo Zepeda Barrios and its secretary general was Gabriel Leon Echaíz.
[1] This amalgam was prompted by the lack of significant ideological differences between liberals and Republicans.
Still, a conservative Republican sector refused to join the ULR, as some liberals who were critics of the opposition attitude of his party.
In economic matters, he defended the freedom of enterprise and private property, recognition of the social function the same as its fundamental limit.
[2] It was a member of the Democratic Alliance and on February 2, 1988, signed with other 14 parties the call to vote "No" in the plebiscite to be held in October of that year, making it one of the founders of the Coalition of Parties for Democracy.