In the very height of this first excitement, without waiting to know whether the Mexican Government would avow or disavow the hostile act, President Polk, on the 11th of May, sent a most aggressive message to Congress, "invoking its prompt action to recognize the existence of war, and to place at the disposition of the Executive the means of prosecuting the contest with vigor, and thus hastening the restoration of peace." As soon as the message was read in the House, a bill was introduced authorizing the President to call out a force of fifty thousand men, and giving him all the requisite power to organize, arm, and equip them.

The preamble declared that "war existed by the act of Mexico," and this gave rise to an animated and somewhat angry discussion.

The Whigs felt that they were placed in an embarrassing attitude.

They must either vote for what they did not believe, or, by voting against the bill, incur the odium which always attaches to the party that fails by a hair's-breadth to come to the defense of the country when war is imminent.
Prominent Whigs believed, that, as an historical and geographical fact, the river Nueces was the western boundary of Texas, and that the President, by assuming the responsibility of sending an army of occupation into the country west of that river, pending negotiations with Mexico, had taken a hostile and indefensible step.

But all agreed that it was too late to consider any thing except the honor of the country, now that actual hostilities had begun.