Who was O'Sullivan referring to when he wrote that other nations have come "between us and the proper parties to the case"?

John Louis O'Sullivan

Explanation:

John Louis O’Sullivan, a popular editor and columnist, articulated the long-standing American belief in the God-given mission of the United States to lead the world in the peaceful transition to democracy. In a little-read essay printed in The United States Magazine and Democratic Review, O’Sullivan outlined the importance of annexing Texas to the United States:

i believe the answer would be 1.

special interest groups must step back and let the process work itself out a representative can amend it at several points in the congressional staffers must do homework and report to the floor on what they 've learned