3. The fall campaign was formally opened by the supporters of the presidential policy, who had immediately accepted the report of the Committee on Reconstruction as the platform of the Republican anti-administration faction, and had determined to appeal on that issue to the people. Their hope was that the conservative element of the population, thoroughly worn out by the struggle, would uphold the speedy restoration of the Southern States, and that thereby a coalition might be made between the Democrats and the administration Republicans strong enough to unseat many of the radical members, reverse the majority, and so give the administration control in the 40th Congress. The first steps were promptly taken. The executive committee of the National Union Club, a political organization established in Washington by supporters of the administration, issued on June 25, just one week after the submission of the report of the Committee on Reconstruction, a call for a national convention to be held in Philadelphia on August 14.[129] Delegates to this convention were to be chosen by those supporting the administration and agreeing to certain "fundamental propositions" which formed the platform of the conservatives. These propositions maintained the absolute indissolubility of the Union, the universal supremacy of the Constitution and acts of Congress in pursuance thereof, the constitutional guarantee to maintain the rights, dignity and equality of the States, and the right of each State to prescribe the qualifications of electors, without any federal interference. They declared that the usurpation and centralization of powers infringing upon the rights of the States "would be a revolution, dangerous to republican government, and destructive of liberty;" that the exclusion of loyal senators and representatives, properly chosen and qualified under the Constitution and laws, was unjust and revolutionary; that as the war was at an end, "war measures should also cease, and should be followed by measures of peaceful administration;" and that the restoration of the rights and privileges of the States was necessary for the prosperity of the Union. This formal call was approved, and its principles endorsed by the Democratic congressmen, who issued an address to the "People of the United States" on July 4, urging them to act promptly in the selection of delegates to the convention.