6. Warren G. Harding
Harding was quite a popular president during his administration. Still, due to the corruption that occurred during his time in office, he’s now considered one of the worst US presidents.
Many top officials in his cabinet were involved in bribery and other illegal activities, and Harding did little to stop it. Once he moved into the White House, the 29th president kept himself busy with poker, golf, and his mistress, while his deputies and cronies plundered the government in a number of creative ways.
For instance, in exchange for a modest under-the-table sum, his secretary of the interior authorized oilmen to tap into federal oil reserves, including one in Teapot Dome, Wyoming.