Here is what the linked article says from Post #63:
"Skepticism of a parade matching Trump’s vision
Planning for the Army’s semiquincentennial began before Trump was elected last year. Initial plans called for a smaller event: a few hundred troops, a concert by the Army Band, and a seated audience of several dozen and a packaged broadcast special focusing on the military.
But Trump’s return to power changed things. Long in favor of a major military display in Washington, he’d at last found a suitable reason — and more willing advisers — to arrange the parade of his dreams."
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The article does not say that the large parade planning began 2 years ago before Trump's election. As a matter of fact it notes that Trump changed the smaller plans after reelection.
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Flying home from his first visit to Paris as president, an awestruck Donald Trump told aides aboard Air Force One that the military parade he’d just witnessed was one of the most dazzling spectacles he’d ever seen.
amp.cnn.com