Why now? What explains the thunderous revelation that the FBI — doubtless with the approval of those at the highest levels of the Department of Justice — executed a search warrant on Monday at Donald Trump's Mar-a-Lago residence? The apparent focus was documents the former president removed from the White House.
A very plausible answer is that a charge related to official documents could swiftly and cleanly serve as the basis for a satisfactory resolution of the pox on the country that is Donald Trump.
A more straightforward, prosaic answer to why the warrant was served is that the Department of Justice has assembled evidence of probable cause that evidence of a crime would be found at Trump's Florida home.