The first Legislative Assembly of the Territory of Iowa did not meet until November 12, 1838. On the first day of the session each house proceeded to organize pro tempore. Then they assembled jointly in the hall of the House of Representatives to be sworn in by the Governor, and to receive any communication which his "Excellency" might have to make to them.

Governor Lucas delivered his first message in person. He took pains to emphasize the fact that the Organic Act had vested the legislative power in "the Governor and a Legislative Assembly," which meant that "the Executive is vested with advisory and restraining powers, and the Legislative Assembly with deliberative and enacting powers." "In no place," he declared later in a communication to the Secretary of the Territory, "is there any power vested in the Legislative Assembly independent of the Governor."

Throughout the message, which when printed covered ten pages of the journal, the Governor freely advised and recommended such measures as he deemed most expedient. Then near the close he boldly added: "I shall at all times take pleasure in concurring with you in acts that tend to advance the general interests of the Territory, and the prosperity of the people;--but at the same time will be compelled to withhold my assent to such acts, or proceedings, as I may conscientiously for the time being believe to be prejudicial to the public good." Robert Lucas lived up to the spirit and the letter of his declaration.

In the matter of appointments the Governor's policy was courageously set forth in these words: "I shall at all times pay a due respect to recommendations; but cannot conscientiously nominate to office any individual of bad moral character, or, that may be addicted to intemperance or gambling, if known to me. These vices are so contaminating in their character, that all public officers in my opinion should be clear of even a suspicion of being addicted to them." Lucas, writing some years later, was of the opinion that this declaration was one of the potent causes of opposition to his administration.

After the election of permanent officers, which followed the Governor's speech, the Legislative Assembly proceeded with energy and enthusiasm to the business of legislation. But not a few of its measures met with the disapproval of the Governor. It soon became evident that the relations between the Executive and the Assembly were not altogether cordial. The situation was made still more embarrassing by the ill feeling which existed between the Governor and the Secretary of the Territory. Indeed it is clear that Mr. Conway was instrumental in stirring up much of the opposition to Governor Lucas by confiding his private grievances to members of the Assembly, by deferring to the Assembly to the point of servility, and by affecting to set up an administrative department distinct and separate from that of the Governor. On November 14, he submitted to the Council and House of Representatives the first of a series of communications bearing directly upon his own position and powers as Secretary and his relations to the Legislative Assembly, and indirectly upon his relations to the Governor and the relations of the latter to the Assembly.

It was early in the session that the Council and House of Representatives resolved "That when an act is presented to the Governor for his approval, he shall, within a reasonable time thereafter, make known to the House in which said act may have originated of his approval thereof; or if not approved of, the act shall be returned, with his objections thereto." For some weeks after its passage, this resolution seems to have received no attention. Either there was delay in presenting it to the Governor, or the Governor did not give it his immediate attention. It was not until January 4, 1839, that the resolution was returned to the House of Representatives with this observation from the Governor: "I see no place in the organic law, that vests the Council and House of Representatives with the right to dictate to the Executive in the discharge of his official duties."

In the meantime the Council had taken steps looking toward the regulation by statute of all official intercourse between the legislative and executive departments of the government. On December 4, 1838, a committee of two was appointed to confer with the Governor and report a bill. The committee held the conference and reported a bill on the day following. After some discussion the bill passed the Council on December 11, but not without important amendments. On the day following, the bill as amended passed the House of Representatives. It was presented to the Governor on the 18th.

On December 19, Lucas returned the bill to the Council with his veto. He objected to the changes which had been made in the bill as originally reported by the committee. At the same time he took occasion to state, for the information of the Assembly, the course he intended to pursue in the future. He said: "All bills, resolutions, or memorials, submitted to me, will be carefully examined, and if approved, will be signed and deposited in the office of the Secretary of the Territory. If special objections are found, but not sufficient to induce me to withhold my assent from the bill, resolution, or memorial, a special note of explanation will be endorsed with my approval. Bills, resolutions, or memorials, that may be considered entirely objectionable, or of doubtful policy, will be retained under advisement or returned to the Legislative Assembly, with my objections, at such time, and in such way and manner as I may, for the time being, deem to be most advisable."

In reply to all this it was "Resolved, By the Council and House of Representatives of the Territory of Iowa, That his Excellency Gov. Lucas, is hereby respectfully requested to inform each House of the Legislative Assembly, of all acts by him approved during the present session; and that he is further requested hereafter to inform the House in which a bill originated of his approval thereof immediately after the same has been given."

With a brief message, Lucas returned this resolution to the House of Representatives on January 5, 1839. He would at all times be pleased to comply with requests from the Assembly, provided it "could be done with some propriety and conscience; but having neither secretary, clerk, messenger, assistant or other attendant, in public employ, at the Executive office, . . . . I must respectfully decline a compliance with your respectful request, and most respectfully invite your attention to my communication of the 19th December last."