It was on this premise that he ordered the first of the Palmer Raids.

- what about the Palmer raids under Woodrow Wilson, etc.

He was arrested in the Palmer Raids at the end of 1919 but was not deported.

Officials blamed anarchist and communist elements, fueling the ongoing Palmer raids.

They were arrested, jailed and almost deported during the infamous Palmer raids of 1920 and 1921.

In the Palmer raids of 1920, Federal agents arrested 4,000 supposed radicals in a single night.

Their most famous and influential years were from 1905 until they were largely suppressed by the Palmer Raids.

Then, on January 2, 1920, the Palmer Raids began.

The "Palmer Raids" were wholly unconstitutional but popular and Hoover was central to their success.

This prosecution was continued in 1919 and January, 1920 in the Palmer Raids or the red scare.