What was the importance of the union victory at gettysburg

What happened in the 2000 election of al gore vs bush

Congress checks on the power of the presidency by overriding a presidential reversal or veto. debating the bill in both of the houses. making laws without presidential review. sending the bill back to several committees

How did the nazis lead germany to war in europe and, with their collaborators, kill millions—including systematically murdering six million jewish people?