He was one of the co-founders of the Valdostan Union party, as well as serving as a national deputy from 1958 to 1963, as the president of the Regional Council of Aosta Valley from 1975 until his death in 1977.

He was first elected to the Regional Council of Aosta Valley in January 1946.

He was elected to the Chamber of Deputies from the Aosta Valley constituency in 1958, serving until 1963.

[2] He was then reelected to the Regional Council of Aosta Valley in 1963, again serving as president from 1963 until 1966.

[3] On December 19, 2017, the 40th anniversary of Caveri's death, the Regional Council of Aosta Valley held a dinner honoring him, including a speech by Regional Council president Andrea Rosset.