She was senator of the Distrito Nacional twice (1994–1998 and 1998–2000) and Secretary of State (Minister) for Education of the Dominican Republic, for the same time period she was vice president (2000-2004).

In the Dominican Republic general election in 2016 she served as campaign manager for the mayoral candidate of the National District, who would be the winner, David Collado.

Over time her uncle continued to gain admiration and reverence from her relatives, while attracting enmity from Rafael Trujillo and his regime.

Caliés (snitches) would stroll outside the family home with complete confidence, while local vendors and door-to-door trades people were suspected of being informants for the intelligence services of the regime.

On one occasion, and as a young teenager, Milagros was called by the mother of a friend whose 15 year birthday celebration was soon to take place.

Doña Angelita, her mother, still recovering from a stroke suffered a year before learning of the death of the Mirabal Sisters, with whom the Bosch family had narrowed friendship.

Doña Angelita not withstand the torment that caused an officer recognized the SIM, César Villeta, threw all sorts of insults against young sisters killed hours earlier by agents of tyranny.

The celebration of the death of the tyrant and the joy of that event could not be higher, but had to observe caution, as security agencies unleashed their fury like never before against the resistance of the dictatorship.

Milagros arrived that morning in early 1962 charged with emotion to San Isidro de Coronado in Costa Rica, to participate in a political training course with more than 70 Dominicans and three Ecuadorians among the latter Rodrigo Borja, then president of Ecuador.

The excitement of Milagros was greater than all others: I was going to finally meet Uncle Juan, a professor of that course, and who organized and its return to the motherland as leader of the PRD.

The output of Don Juan of the PRD found Milagros in New York, where he walked with his son John on his shoulder, busily seeking healing of his illness.

Milagros was not in accordance with the proposed formula Bosch the country the same May 17 of that year at the outbreak of the crisis by the attempt of the military chiefs of ignoring the results of elections or a government of national unity was formed.

She was senator of the Republic and in such a condition was part of the first National Council of the Magistracy that gave form and life to the current Supreme Court at the same time has made the rest of the judiciary.

She was vice president of the Republic for four years, chosen by most of their fellow citizens, and simultaneously held the Ministry of Education, leaving their mark on a management that is conspicuous by its transparency.

After occupying the Vice Presidency of the Republic in the period 2000–2004, she was initially opposed the reelection purposes of Hipolito Mejia, although he ended up supporting Ocon some timidezó the candidacy of his party in the presidential elections that marked the return to power of Leonel Fernández.