How does roosevelt try to persuade the american public to send weapons to europe?

In his speech before Congress, Roosevelt said that American neutrality laws as they stood in 1939 may actually give passive “aid to an aggressor” while denying help to victimized nations. Roosevelt’s primary goal was to make it easier for the U.S. to supply arms to democratic Britain and France. The new provision prohibited American ships from transporting arms or war material, gave the president power to identify combat zones (primarily Atlantic sea lanes) from which American citizens would be restricted and made it illegal for U.S. citizens to travel on vessels from belligerent nations.

In the midwest because it has more moderate climate than the north or south west which makes farming far easier.