The idea of a former U.S. president taking action to incorporate the state of Oregon into another entity raises significant constitutional and political questions. The United States Constitution outlines the process for admitting new states, but it does not provide a mechanism for one state to be absorbed by another after initial admittance to the Union. Any such endeavor would require substantial legal justification and likely necessitate constitutional amendments or interpretations. For example, consider the Louisiana Purchase: while that involved acquiring territory, this theoretical scenario involves a state already part of the U.S.
The ramifications of such an action would be far-reaching, affecting the balance of power within the federal government, altering congressional representation, and potentially disrupting existing interstate agreements. Historically, state boundaries have been relatively stable, with changes primarily occurring through secession (as in the Civil War) or boundary disputes, neither of which directly correlate to the idea of annexation by another state. Such a proposal would therefore represent a radical departure from established norms.