What did the author mean by "dam of lies" in this quote: "Once the dam of lies cracked, it quickly collapsed under the increasing flow of revelations that would eventually drown the presidency."

The author means that, once the series of lies became exposed, it would then fail to protect the presidency from the very aim it wanted to. That, the trust will be eroded due to those lies leading to mistrust of the government by its'people.

Explanation:

on the morning of  july 21,  1861, general mcdowell ordered the  unionarmy to attack. it was on this hill that  confederate  colonel thomas jackson and his forces held back theunion  troops.

during the pueblo revolt, father de mora hid most of the gold in the mine and covered the entrance. he tried to take some of the gold with him, but had to leave it behind in order to escape.