evidence: About the same time, British cryptographers intercepted and began deciphering Germany’s "Zimmermann Telegram" offering U.S. territory to Mexico in return for joining the German cause. Though Mexico declaring war was not perceived as an imminent threat by the American public, sensational headlines trumpeted each new development as one of history’s most influential acts of codebreaking played out. Across the nation, support grew for intervention. [...] On April 2, President Wilson asked Congress to declare war against Germany specifically citing Germany’s renewed submarine policy as "a war against mankind. It is a war against all nations." He also spoke about German spying inside the U.S. and the treachery of the Zimmermann Telegram. Wilson urged that "the world must be made safe for democracy." For four days, Americans debated the momentous decision and most major newspapers published a sensationalized mix of war news and rumors that cast Germany as a ruthless enemy. On April 4, the Senate voted to declare war against Germany by a vote of 82-6. At 3:12 a.m. on April 6, the House of Representatives passed the resolution in a vote of 373 to 50.