Mr. Ames was now a rapidly rising man. Various essays on political subjects from his pen appeared in the newspapers, and contributed to draw public attention to him. When quite young, he was sent to a convention held at Concord, to consider the depreciated state of the currency, where he made an eloquent speech. In 1788, he was a member of the convention for ratifying the federal constitution. Here he added much to his fame by a number of excellent speeches. One on the biennial election of representatives was considered the best, and is the only one given in his works. It is lucid, statesmanlike, and eloquent. The occasion of it was an inquiry by Samuel Adams, why representatives were not made elective annually. To this Ames alludes in the closing paragraph: "As it has been demanded why annual elections were not preferred to biennial, permit me to retort the question, and to inquire, in my turn, what reason can be given why, if annual elections are good, biennial elections are not better?" Adams professed himself entirely satisfied. This same year Ames represented Dedham in the legislature.

In 1789, Suffolk county sent him as her first representative to Congress, in opposition to Samuel Adams. He was in Congress eight years, during the whole of Washington's administration, and was one of the most prominent leaders of the federal party, giving to the President uniform and important support. In this period, he acquired a reputation for candor, integrity, ability, and eloquence, second to that of no man in Congress. At times, particularly towards the end of his term, ill-health compelled his absence; yet he examined with care every important question that presented itself, and spoke upon almost every one. But of his numerous efforts in Congress, only two are printed among his works, one on certain resolutions of Madison's for imposing additional duties on foreign goods, delivered in 1794, and the speech on Jay's treaty, two years later, his most brilliant effort, "an era," says his biographer, "in his political life." This speech was written out from memory by Judge Smith and Samuel Dexter, receiving a revision from Ames. It is thus alluded to by Hildreth: "He (Ames) had been detained from the House during the early part of the session, by an access of that disorder which made all the latter part of his life one long disease. Rising from his seat, pale, feeble, hardly able to stand or to speak, but warming with the subject, he delivered a speech which, for comprehensive knowledge of human nature and of the springs of political action, for caustic ridicule, keen argument, and pathetic eloquence, even in the imperfect shape in which we possess it, has very seldom been equalled on that or any other floor." The question was to have been taken that same day, but one of the opposition moved that it be postponed till the next, that they should not act under the influence of an excitement of which their calm judgment might not approve.

After reducing the question to one of breaking the public faith, the speaker adds: "This, sir, is a cause that would be dishonored and betrayed, if I contented myself with appealing only to the understanding. It is too cold, and its processes are too slow for the occasion. I desire to thank God that, since he has given me an intellect so fallible, he has impressed upon me an instinct that is sure. On a question of shame and dishonor, reasoning is sometimes useless, and worse. I feel the decision in my pulse; if it throws no light upon the brain, it kindles a fire at the heart." It is the spirit that breathes in this splendid burst that stirred the minds of the hearers, wearied and disgusted with a discussion of nearly two months, so that, in the blunt language of John Adams— "there wasn't a dry eye in the House, except some of the jackasses that occasioned the necessity of the oratory."

Ames's speeches show great clearness of mind and power of reasoning, and have about them an air of candor that induces conviction. He brought to every subject on which he was to speak, that thorough understanding of it, in which, if we may believe Socrates, lies the secret of all eloquence. It appears to have been customary with him to wait till a question had undergone some discussion, that he might the better appreciate the arguments on both sides. He would then rise, and disperse, as with the wand of Prospero, the mists of prejudice and sophistry that had gathered over the question in the course of debate, while he placed the subject before the House with convincing eloquence and precision. His well-stored mind poured forth illustrations at every step, and his imagination illuminated each point on which he touched. Now and then it would light up into a pure and steady blaze as he dwelt on some topic that stirred his deepest emotions, and transfigured it in apt and nervous language. In this union of imagination and feeling, making every period glow with life, with logical power, Ames resembled Chatham.

He was not in the habit of trusting to notes, but used to think out a sketch of what he was to say, and trust for the rest to the inspiration of the occasion. At first his manner was slow and hesitating, like one in reflection; but as he went on, his thoughts and his language flowed fast, and his face beamed with expression. We have heard his manner characterized by one who had frequent opportunities of hearing him, in the words of Antenor's description of Ulysses:

"But when Ulyssus rose, in thought profound,
His modest eyes he fixed upon the ground,
As one unskilled, or drunk, he seemed to stand,
Nor raised his head nor stretched his sceptred hand;
But when he speaks, what elocution flows!
Soft as the fleeces of descending snows,
The copious accents fall, with easy art;
Melting they fall and sink into the heart!"

His voice is described as rich and melodious. His personal appearance is thus given by Wm. Sullivan: "He was above middle stature, and well-formed. His features were not strongly marked. His forehead was neither high nor expansive. His eyes blue, and of middling size; his mouth handsome; his hair was black, and short on the forehead, and in his latter years unpowdered. He was very erect, and when speaking he raised his head; or rather his chin was the most projected part of his face." Before a jury he was very effective. There was nothing bitter or sarcastic in his manner; but mild, cool, and candid, it made a jury, as we heard it expressed, "want to give him the case, if they could." He is contrasted with his friend Samuel Dexter, as preferring to illustrate by a picture, while Dexter would explain by a diagram.

Mr. Ames was the author of the "Address of the House of Representatives to Washington," on his signifying his intention to withdraw from office. His own health had been, and was still so feeble, that he could not stand for re-election. Accordingly, he retired to Dedham in March, 1797, intending to devote himself, as far as possible, to the practice of his profession and the enjoyment of domestic happiness.

In July 1792, Mr. Ames had married Miss Worthington, of Springfield. This marriage was an exceedingly happy one. Mrs. Ames was much beloved and respected by her neighbors, and, in her sphere, was considered as remarkable as her husband. She was a woman of gentle and retiring disposition, devoted to her family, kind, motherly and sensible. Mr. Ames seems to have found in her a companion who called forth and appreciated all those amiable qualities which were a part of his character. She took a good deal of interest in public affairs, and was a woman of cultivated mind. She survived her husband, and died some sixteen years since, at the age of seventy-four. They had seven children, six sons and a daughter. The daughter died young and unmarried, of consumption. Three of the sons are now living, one in Dedham, one in Cambridge, and another somewhere at the West. All the children however survived their father.

Previous to his marriage Mr. Ames had lived with his mother. After that event he moved to Boston and took a house on Beacon Street, next to Governor Bowdoin's. He appears to have lived here about two years, when he returned to Dedham, and began the building of a new house. This house was finished and occupied by the winter of 1795; during the interval Mr. Ames lived in a house opposite the old mansion now occupied by the Dedham Gazette. This new house of Ames's is still standing in Dedham, externally much the same as of old; a large square-built, two-story house, flat-roofed, simple and substantial. Internally, however, together with the ground about it, it has undergone many alterations. Formerly it had not the piazza now in front of it, and the various chimneys were then represented by one fat, old-fashioned, solid structure in the middle. It passed out of the hands of the family about 1835, and is at present owned by Mr. John Gardiner.