WASHINGTON (Reuters) -U.S. President Donald Trump’s top communications regulator said on Thursday he did not object to decisions by Facebook and Twitter to block the president from their social media platforms. “Given the circumstances that we saw yesterday... I’m not going to second-guess those decisions,” Federal Communications Commission (FCC) Chairman Ajit Pai told C-SPAN on Thursday, according to a recording of the interview seen by Reuters. Asked if Trump bore responsibility for the violent actions Wednesday at the U.S. Capitol by Trump supporters, Pai said “it was a terrible mistake to suggest that the results of the election, and particularly...