Why did democrats hold power for so long in the 30s, 40s, and 50s? rampant inflation due to securities fraud the country entered the great depression blaming republicans for the lack of government regulation on the stock market the house and senate admitting women to congress

Democrats held power for so long during the 30s, 40s, and 50s because the country entered the Great Depression.

Democrats dominated this time period because its liberal policies and programs with FDR's "New Deal" were seen as the best way to combat the emergency bank closings.

The correct answer here is the second option.

The United States entered the Great Depression after the market crash in 1929. The president Hoover, incumbent president at the time, was a republican who did not want the government to interfere as he believed the market would fix itself. This angered many people and after the election, a democrat, president Roosevelt got the country out of depression and thus increased the popularity of the Democratic Party.