Why do the Widow Douglas and Judge Thatcher fail in their petition to become Huck's guardians?
When Huck's Pa arrives on the scene and begins trying to extort money from Huck, who was entitled to $1 every day from the interest of the reward he gained at the end of Tom Sawyer, Huck refuses to pay. Pa berates Huck as being a poor son, then takes the one dollar Huck has and heads to town to get drunk. After doing so, he tries to bully Judge Thatcher into giving him Huck's money.
The Judge and the Widow Douglas appeal to the local court to appoint them as Huck's guardians in place of Huck's Pa, but the judge in the court was new in the area and didn't know of Pa's reputation. He refused to separate family members such as Huck and his Pa, so the Judge and Widow Douglas had to drop their case.