For many years, curiously enough, the chief offender was the democratic Swiss Confederation, the Federal constitution of which was exclusively Christian, while the Cantonal legislation was in many cases frankly and even aggressively anti-Semitic. Until 1827 the Swiss Commercial Treaties contained no hint of religious differentiation, but in that year, availing themselves of the reactionary and clerical sympathies of the government of Charles X, the Federal Authorities negotiated a Treaty with France containing a "National treatment" clause, under which the powers of the separate Cantons to deal as they pleased with Jews were, in effect, reserved. But this was not all. Lest the clause should be misinterpreted, the French Minister at Berne was authorised to address a secret Note to the President of the Swiss Diet acknowledging that it implied the desired restriction, on "the Jewish subjects of the King."[67] The transaction was obviously one which could not stand the light of the Revolution of 1830, and when three years later the Government of the Canton of Basle applied the Treaty in all its rigour to French Jews, the Duc de Broglie, then French Minister for Foreign Affairs, issued an Ordinance suspending the operation of the Treaty in regard to the offending Canton, and followed this up by severing diplomatic relations and by placing a military cordon on the frontier.[68] The King himself approved the action of his Minister in an energetic speech to a deputation of the Consistoire Israélite. However, in 1835 the Ordinance was withdrawn, and until 1850 the peace was more or less preserved by a tacit _modus vivendi_. The resistance of France was rendered difficult, partly by perplexities of general politics, but more immediately by the fact that the question was a larger one than it had at first appeared. In February 1840 a French Jew had been refused a _permis de séjour_ by the police of Dresden on the ground that Jews were not permitted to reside in the city. The case was precisely similar to that of Switzerland, and M. Guizot, who was then Foreign Minister, hesitated to take up a strong attitude as he was afraid that the precedent might involve him in complications with other countries.[69] Nevertheless, French public opinion was aroused, and the Chamber, after a lively debate, called upon the Government to make suitable representations to Saxony.[70] In 1850 a Commercial Treaty between the United States and Switzerland was signed at Berne, but the American Senate, on the advice of the President, refused to ratify it because it discriminated against non-Christians.[71] This was followed almost immediately by a revival of the anti-Semitic activity of the Basle police, chiefly at the expense of French Jews resident in the Canton. The French Government again protested energetically and insisted on the withdrawal of the police measures. The demand was sulkily complied with, the Cantonal Government reserving what they called "the principle."[72]