Donald Trump promised to keep a close eye on Mark Zuckerberg for the rest of the 2024 presidential election. In an excerpt of his upcoming book, Save America, the embattled ex-prez revealed the Facebook CEO would often drop by the Oval Office during his term in office. “He would bring his very nice wife to dinners, be as nice as anyone could be, while always plotting to install shameful Lock Boxes in a true PLOT AGAINST THE PRESIDENT,” he alleged, seemingly in reference to the rumors that Zuckerberg and his wife, Priscilla Chan, contributed over $400 million to help elect President Joe Biden i…