WASHINGTON — Blistered by bipartisan condemnation of his embrace of a longtime U.S. enemy, President Donald Trump sought Tuesday to “clarify” his public undermining of American intelligence agencies, saying he had misspoken when he said he saw no reason to believe Russia had interfered in the 2016 U.S. election. “The sentence should have been, ‘I don’t see any reason why I wouldn’t, or why it wouldn’t be Russia” instead of “why it would,” Trump said, in a rare admission of error by the bombastic U.S.