After leaving the cabinet, and resuming his law practice, Mr. Webster, of course, continued to watch with attention the progress of events.  The formation of the Liberty party, in the summer of 1843, appeared to him a very grave circumstance.  He had always understood the force of the anti-slavery movement at the North, and it was with much anxiety that he now saw it take definite shape, and assume extreme grounds of opposition.  This feeling of anxiety was heightened when he discovered, in the following winter, while in attendance upon the Supreme Court at Washington, the intention of the administration to bring about the annexation of Texas, and spring the scheme suddenly upon the country.  This policy, with its consequence of an enormous extension of slave territory, Mr. Webster had always vigorously and consistently opposed, and he was now thoroughly alarmed.  He saw what an effect the annexation would produce upon the anti-slavery movement, and he dreaded the results.  He therefore procured the introduction of a resolution in Congress against annexation; wrote some articles in the newspapers against it himself; stirred up his friends in Washington and New York to do the same, and endeavored to start public meetings in Massachusetts.  His friends in Boston and elsewhere, and the Whigs generally, were disposed to think his alarm ill-founded.  They were absorbed in the coming presidential election, and were too ready to do Mr. Webster the injustice of supposing that his views upon the probability of annexation sprang from jealousy of Mr. Clay.  The suspicion was unfounded and unfair.  Mr. Webster was wholly right and perfectly sincere.  He did a good deal in an attempt to rouse the North.  The only criticism to be made is that he did not do more.  One public meeting would have been enough, if he had spoken frankly, declared that he knew, no matter how, that annexation was contemplated, and had then denounced it as he did at Niblo’s Garden.  “One blast upon his bugle-horn were worth a thousand men.”  Such a speech would have been listened to throughout the length and breadth of the land; but perhaps it was too much to expect this of him in view of his delicate relations with Mr. Clay.  At a later period, in the course of the campaign, he denounced annexation and the increase of slave territory, but unfortunately it was then too late.  The Whigs had preserved silence on the subject at their convention, and it was difficult to deal with it without reflecting on their candidate.  Mr. Webster vindicated his own position and his own wisdom, but the mischief could not then be averted.  The annexation of Texas after the rejection of the treaty in 1844 was carried through, nearly a year later, by a mixture of trickery and audacity in the last hours of the Tyler administration.