Bonaparte had now to rid himself of Sieyès and of those
republicans who had no desire to hand over the republic to one man,
particularly of Moreau and Masséna, his military rivals. The victory of Marengo (14 June 1800) momentarily in the balance, but secured by Desaix and Kellermann, offered a further opportunity to his jealous ambition by increasing his popularity. The royalist plot of the Rue Saint-Nicaise on 24 December 1800 allowed him to make a clean sweep of the democratic
republicans, who despite their innocence were deported to Guiana, and to annul the Assemblies and instead making the senate omnipotent in constitutional matters.
The Treaty of Lunéville, signed in February 1801 with Austria (which had been disarmed by Moreau’s victory at Hohenlinden), restored peace to Europe, gave nearly the whole of Italy to France, and permitted Bonaparte to eliminate from the Assemblies all the leaders of the opposition in the discussion of the Civil Code. The Concordat of 1801, drawn up not in the Church's interest but in that of his own policy, by giving satisfaction to the religious feeling of the country, allowed him to put down the constitutional democratic Church, to rally round him the consciences of the peasants, and above all to deprive the royalists of their best weapon. The Articles Organiques hid from the eyes of his companions-in-arms and councillors a reaction which, in fact if not in law, restored to a submissive Church, despoiled of her revenues, her position as the religion of the state.
The Peace of Amiens (25 March 1802) with the United Kingdom, of which France's allies, Spain and the Batavian Republic, paid all the costs, finally gave the peacemaker a pretext for endowing himself with a Consulate, not for ten years but for life, as a recompense from the nation. The Rubicon was crossed on that day: Bonaparte’s march to empire began with the constitution of the year X.
In August of 1802 a second national referendum was held, this time to confirm Napoleon as First Consul for Life. Once again a rigged vote claimed 99% approval.
As Napoleon increased his power he borrowed many techniques of the ancien régime in his new form of one-man government. Like the old monarchy he re-introduced plenipotentiaries, an over-centralised, strictly utilitarian administrative and bureaucratic methods, and a policy of subservient pedantic scholasticism towards the nation's universities. He constructed or consolidated the funds necessary for national institutions, local governments, a judiciary system, organs of finance, banking, codes, traditions of conscientious well-disciplined labour force.
France enjoyed a high level of peace and order under Napoleon that helped to raise the standard of comfort. Provisions, in Paris which had so often suffered from hunger and thirst, and lacked fire and light, had become cheap and abundant; while trade prospered and wages ran high. The pomp and luxury of the nouveaux riches were displayed in the salons of the good Josephine, the beautiful Madame Tallien, and the "divine" Juliette Récamier.
But the republicans, and above all the military, continued to view Napoleon as little more than a tyrant. They criticized the regime's bullying police, the prostration before authority, the sympathy lavished on royalists, the recall of the émigrés, the contempt for the Assemblies, the purification of the Tribunate, the platitudes of the servile Senate, and the silence of the press. In strengthening the machinery of state, creating the elite order of the Legion of Honour, the Concordat, and the restoration of indirect taxes, they saw a betrayal of the Revolution.
Napoleon was largely able to quell dissent within government by expelling his more vocal critics, such as Benjamin Constant and Madame de Staël. The expedition to San Domingo reduced the republican army to a nullity; constant war helped demoralise and scatter the military's leaders, who were jealous of their "comrade" Bonaparhe last major challenge to Napoleon's authority came from Moreau, who cleverly compromised in a royalist plot, but soon too did he disappear into exile.
In contradistinction to this opposition of senators and republican generals, the majority of the French populace remained uncritical of Bonaparte's authority. No suggestion of the possibility of his death was tolerated. After thwarting yet another conspiracy against his rule, led by Cadoudal and Pichegru, and provoked by Bonaparte's refusal to give place to Louis XVIII, and executing the hated duc d'Enghien, Napoleon enjoyed a great outpouring of adulation, which he in turn took advantage of to put the crowning touch to his ambitious dream.