In the quote:
The Hoover administration had deployed tanks and tear gas to drive a bedraggled remnant of World War I veterans (the Bonus Marchers) from Washington but otherwise appeared incapable of responding to the crisis.
How do we understand the phrase "bedraggled remnant"? Is it a set phrase? Or it just means that those veterans are dirty or wet?
What is the logic in this sentence? Is it the tanks and tear gas that made those veterans bedraggled? Or is it the economic crisis that made them bedraggled?
What is emphasized here with the phrase "but otherwise"? What does the author intend to convey to the readers?