"by united press
washington, march 20. — the peace treaty is now up to president wilson.
the senate washed its hands of the pact last night when by a vote of 49 to 35 it refused to ratify it, and by a vote of 47 to 37 voted to send it back to president wilson with word that it could not be ratified. the question today was: “what will president wilson do about it.”
he can send it back to the senate. in that case senator lodge and other republicans, as well as some democrats, declared that no action would be taken on it until after the issue of the treaty or no treaty is fought out in the coming campaign.
he can go to the american people in a “solemn referendum,” as he said he would do in a letter to the jackson day dinner on the question of ratification of the pact as it is as nn [an] issue in the national campaign of 1920.
he can drop the treaty and begin negotiations with germany for resuming the state of peace.
the general expectation among senators is that he will take the second course and ask the democratic party to make the treaty the paramount issue in the campaign.…
source: carey orr, chicago daily tribune, december 27, 1918 (adapted)
source: columbia evening missourian,

march 20, 1920 (adapted)
based on these documents, what was one outcome of the senate debate over the treaty of versailles? "