Was the roosevelt corollary to the monroe doctrine stated that only the US had the rights to intervene in latin American nations' affairs?

The Monroe Doctrine essentially protected the Americas from further European conquest. Therefore, the doctrine made the U.S. a sort of "big brother" to Latin America.

dominican republic

Latin Americans were doubtful about the U.S. enforcement of the Monroe Doctrine, and generally ignored it.

Dominican republic

Monroe stated: "The American continents ... are henceforth not to be considered as subjects for future colonization by any European powers" and warned the imperial European powers against interfering...