Final answer:
Lincoln and Johnson address the theme of freedom by invoking the nation's founding principles to fight for rights.
Explanation:
Abraham Lincoln and Lyndon B. Johnson both address the theme of freedom similarly by referring to the founding principles of the nation as a reason to fight to preserve rights. In Lincoln's Gettysburg Address, he talks about a 'new birth of freedom' and emphasizes government 'of the people, by the people, for the people,' while Johnson, in his 'We Shall Overcome' speech, highlights the importance of every American citizen having an equal right to vote, rooted in the nation's democratic ideals.
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