From his carefully presented state of the case here at Lawnewz:
and so, third, Obama circumvented both the regular command of the FBI and the regularly appointed federal courts, by placing the entire case as a FISA case (and apparently under Sally Yates at DOJ) as a “foreign” case, and then omitted Trump’s name from a surveillance warrant submitted to the FISA court, which the FISA court unwittingly granted, which Obama then misused to spy on Trump and many connected to Trump. Are these allegations true? We don’t know yet, but if any part of them are then Obama and/or his officials could face serious trouble.
Can a President be charged with a crime? Only once out of office. While in office, impeachment remains the exclusive remedy in order to avoid a single judicial branch trying to overturn an election, such as a grand jury in any part of the country could. Once out of office, a President remains immune from civil liability for his duties while President, under a 1982 decision of the United States Supreme Court. However, as the Nixon pardon attests, nothing forecloses a criminal prosecution of the President after his presidency is complete for crimes against the country. Obama, the Constitutional lawyer, should know that.