When we won world war 1 it gave a huge boost in American pride but indeed America still wanted to focus on itself. Most Americans felt that Europe could rebuild itself (which was horribly wrong and set things up for the rise of Hitler and the start of world war 2.). The American people also felt that Americans should not have to fight and die in foreign wars and that since they were across the Atlantic they didn't need to worry about their affairs.
Flawed judicial system? Not enough government funding? Unhappy citizens? I can't answer your question without context.
Answer: The Great Depression was a severe agricultural crisis that happened in the "Dust Bowl". The wet years was what mostly protected this region, but in the early 1930's, very little rain fell. The wind now had grasp of the fertile topsoil, and blew it to dust. For those in Texas, Oklahoma, Kansas, and Arkansas who have lost their jobs due to the massive dust storms, their only way out was to travel west. In California, for example, the rains still fell down and had lots of fertile land to offer for the farmers in Texas, Oklahoma, Kansas, and Arkansas.
Sorry I took so long, I had to research a bit about the Great Depression!
Hope I helped! If you really like my answer, I would appreciate having the brainliest, thanks! :D