As the two sides head toward a confrontation over a presidential interview in the coming weeks, newly hired White House lawyer Emmet Flood and other attorneys are strategizing about how to handle a subpoena from Mueller that would seek to compel Trump to testify in the investigation.

Several White House officials said Flood has cautioned Trump and others about the unpredictability of a subpoena fight that could be decided by the Supreme Court. Such a case would be unprecedented. Independent counsel Kenneth W. Starr served President Bill Clinton with a subpoena to compel him to appear before a grand jury, but it was withdrawn after Clinton agreed to testify voluntarily…

[I]nside the White House, officials have tried to begin delving into key subjects with the president that might come up in a session with Mueller. However, the fledgling briefings have not gone very deep, because of the president’s anger about the probe, according to a person familiar with the situation.