Tensions were running high in the White House on Friday, especially on the communications team, as staff scrambled to figure out whether the president really intended to veto the bill or was just blustering. There is growing concern in the West Wing that the president’s unpredictable behavior is undercutting staffers’ credibility, according to two people who have spoken to White House officials in recent days.

“The press and comms team, more than others, are at their wits’ end,” a former White House official told POLITICO. “I don’t blame them for being frustrated, because they’re on the front lines of this and are directly responsible for dealing with the blowback of the president’s un-planned tweets.”…

Asked earlier Friday whether Trump was serious about vetoing the bill, one White House official said simply, “Who knows.”