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The discussion also touches on the relative rarity of presidential impeachment in American history. President Nixon resigned in 1974 amid looming impeachment charges, choosing to step down to avoid removal from office. President Bill Clinton underwent an impeachment process in the late 1990s, driven by allegations of perjury and obstruction of justice, but ultimately was not removed, as he was acquitted by the Senate.
This historical backdrop illustrates the formidable challenge impeachment presents. It is a complex, multi-step process requiring broad support across political lines, which historically has been difficult to achieve.