What was the aim of Wilmot Proviso?

Wilmot Proviso, in U.S. history, an important congressional proposal in the 1840s to prohibit the extension of slavery into the territories, a basic plank upon which the Republican Party was subsequently built.

a system of cooperative federalism emerged, as the powers of the federal government expanded.

the speech convinced americans that the ussr was an enemy, rather than an ally, which led to the creation of the truman doctrine.