Answer:
1. He negotiated the treaty that gave back the Panama Canal.
2. He failed to support the Shah of Iran and encouraged him to abdicate. This kicked off the Iranian hostage crisis, and destabilized the entire middle east, with effects we still feel today.
3. As a result, the Organization of petroleum exporting countries achieved a stranglehold on world oil production, greatly worsening the world economic collapse amid rapidly rising oil prices.
4. He encouraged a general culture of malaises in America.
Step-by-step explanation:
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